Hi this is a throwaway account just cause I kinda wanted to get this off my chest without stressing

So I (21F) Work at Factory, I’ve worked there for 3 years now, for some more background information, my job is pretty strict on attendance, people get fired just about left and right for it.

My stepdad(50m)we will call him S also works at the same company and has worked there for 30 years now and he also works in a different department. So when I started the job he was actually on vacation so I had to drive myself to and from work on night shifts which are twelve hours long, one day coming home I fell asleep at the wheel and got into a car crash (I was fine) but after that I developed a fear of driving, so once he was back from vacation we began carpooling to work with him driving in my car. Note I have since gotten over my fear of driving.

So to get into the actual story, Yesterday we had work which we had to clock in for by 6:43 Am or 6:50 by the latest, this day neither of our alarms went off and we overslept, I woke up first at 7:16 am, i immediately got up and got dressed and went and woke S up. I was ready to leave about 3-5 minutes after getting up, I texted my boss letting him know I would be late and that I was on my way, My boss texted my back letting me know I have a mandatory hearing test at 8:10. (we live about 40 minutes away without traffic). I was about to ask S if he was ready to leave but he had gotten in the shower. I didn’t want to leave him without saying anything so I started yelling asking if he was ok taking his truck so I could leave and make my test on time.

S couldn’t hear me though cause of the shower which meant I had to wait for him to get out(it’s now 7:30) He got out and I asked I asked him again, he then told me that it didn’t matter and we were already late and I can take the test any time cause that’s what he did (There is no guarantee there would be an open spot for me) I got upset because this isn’t the first time he’s disregarded my want to get to work on time. He usually will get a nonchalant attitude about it but I think he forgets he has been there for 30 years and is in a role there are only a few(4-5) people for so he isn’t likely to be fired. Whereas I’ve been there for under three years and can be fired at any time (I also have a previous final warning from a different incident at work not attendance related).

So after hearing this i decided that I wasn’t going to wait who knows how much longer for him and left (7:32). Thankfully there was no traffic and I made it to work at 8:02 and also made my hearing test with no problem, and I saw him get to work at 8:26.

Since then he hasn’t said a word to me and he put a keep out sign in his door when he got home, this morning I spoke to my mom and she told me he was upset and to just wait and see if he wanted to leave together this morning, after I got ready I walked into the kitchen where he grabbed his things and walked right past me without a word got in his truck and left.

I feel as if I’ve done nothing wrong, the agreement to drive separately is no longer better for me then it is him as I’ve gotten over my fear, it saves him gas in his truck and allows my stepbrother to use his truck to go do jobs for him (he has a side business).

So AITAH for going to work without him?

Edit: I should add cause someone did say this it’s 32 minutes without traffic, and at no time did I speed, I’m still very wary on the road I at no time went over 65 in a 55