I think my biggest pet peeve is the fact that you can still gain a wanted level when the police hit you!
I was casually driving around this evening and when I stopped at a red light, the police came out of nowhere and rear-ended me. I gained a one star wanted level for their stupidity and a second star just for driving away.
Normally I would activate a cheat but the game punishes me by locking trophies for using Wanted Down while free roaming ( ), and even if that wasn't the case, cheats are no longer conveniently stored on your phone. Thanks to all the nostalgic boys, I have to enter that stupid code every single time I gain a wanted level I didn't deserve.