I (28) work in an American sit-down restaurant that once had a horrible reputation for being generally gross, unkempt, and dangerous to eat at (for lack of food safety reasons). I like working here a lot, and am absolutely one of those people who will bend over backwards for my coworkers and manager when I feel seen, appreciated, and heard. A "thank you" goes a long way, and I've worked in so many shitty environments, with so many assholes, it didn't take long for me to stop "acting my wage", as an ex-coworker (she was fired) put it.

I never had beef with this coworker, but distanced myself from her pretty early on as I saw she was a chronic slacker, always on her phone, drinking in the kitchen (in view of customers), putting new labels on out of date product, you get the picture. I was cordial, I don't want to make enemies, I like my job, I make good tips, I want to keep my head down and get out. When this coworker left, the sentiment of me and "acting my wage" didn't exactly let up, it was just less obvious. I've heard coworkers call me a try-hard, kiss-ass, and other similar nicknames. One in particular has been a bit of an ass, and told me that I was "setting a dangerous precedent" by doing so much.

The straw the broke her back was me folding napkins. As a server, I find it so much easier to take napkins for tables when they've been folded in little stacks of 3-4, so we're not grabbing handfuls and huge wads of napkins that don't get used. They don't fly away off my tray, and generally look neater. Up front we have a section where napkins are held in little bags for when people with to-go orders want sauces, plates, silverware, etc. It became part of my routine during downtime to stock this area, too, and I have another little tub under the counter with more I case we run out during a rush. When I asked this coworker how me making myself busy with little tasks like this was in her way, and told her I'm more than open to suggestions on how I can be useful in other areas. I've already folded containers/boxes, checked the bathrooms, filled shakers, etc. I can't remember verbatim, but I said something along the lines of "what would you rather I spend my time on?"

I'm autistic, I didn't think twice about asking her for feedback, and could see how someone who constantly slacks off might feel exposed when someone comes in and highlights what could be done in a shift. I didn't mean to take some moral high road or whatever, but from the vibe I'm getting from her and the other coworkers who agree with her that I'm "doing too much".

So I stopped. I didn't clean up after people, I saw things running low in other areas, and I didn't step in to fill up, I didn't help that coworker with her tables when she decided to take every one that came in, and I stopped prepping these little convenience things. Now she and the other coworkers are upset with me, as when we had a rush, things were a mess. I wasn't juggling my tables and dishes, they didn't have spices/sauces stocked and portioned for to-go orders, and they ran out of boxes because I didn't go out of my way to make sure that area had backup of anything.

Some are saying it's petty that I didn't help out, and pointing out that "when part of the team suffers, we all do"– objectively wrong, I handle my shit just fine without needing my hand held, but I digress, I see where they're coming from on that point. We were SLAMMED in a rush today, and it could've been handled better if we were better prepared. I told my coworker to stick it, "act her wage", and make sure her section is good to go instead of hiding out in the back. I told them that if they want that backup padding, they can do it, I'm done. I'm writing this during my break, watching my coworkers scramble to catch up in case there's another rush, and not quite sure if it's justice or vindictiveness I'm dealing with right now. AITA?

Edit: I realized I put some things here for implied context. 1. I'm 28, most of my coworkers are younger than I am, one of my managers JUST turned 21. The idea of being one of those "young people nowadays hate work" kind of people is why I feel guilty, and want to go easy on/be compliant with them. It's also why I have zero regrets about not being bent over, because I've been working long enough to know not to do shit for people who won't let any good deed go unpunished.

1. I mentioned the previous reputation because following the rules is something I'm a stickler for. I change out our sanitizer buckets every few hours, same with the tea. If I drop something, I send it to the dish pit and get a new one, I wash my hands often and properly wipe down tables, etc. This seems to be another thing that annoys the few coworkers who have an issue with me.