Yep, they have a "Low priority pool" system like Dota 2 does. Dunno how well it'd work in a game like this though.
I don't think blowing up cars puts you into the Bad Sport pool. That's just expected GTA behaviour. Everyone would be in it. Edit: Alright, yeah it does:
http://youtu.be/-s1-h3sf_uY Hilarious, see how many movie's you can catch Trevor is my favorite, from his missions to his interactions with his team to his hatred of the lost ro... well AAARRRRRRGGGGHHHHHHHHHH heh