I don't think that's petty at all, Ryan. And I really admire you for being so brave to set that boundary! I think it will be good for your relationship with your father.
I can relate to feeling angry when your dad calls. My calls at the most once about every 2 months, but I still feel angry. I just don't feel good toward him at all. Most of the bad stuff is in the past. He's not abusive anymore. It's just that he has some annoying habits that really drive me bonkers. And when there is years of buried hostility, I think little things get to you MUCH easier. Don't you think?? I would try what you did with your dad, except that I would NEVER call him and things wouldn't get repaired. I guess sometimes you just have to accept that things are never going to be ideal?
Anyway, I didn't mean to turn it to me. Just wanted you to know that your feelings are NOT petty, and that you're not the only one who has felt this way. I don't know what the relationship with your father has been like in the past, so I don't know for sure that what brought this about is similar. But I DEFINITELY relate to not wanting to always hear from your parents.
Congrats again on being so brave!!

Angela