Also, fun moment I had today involved me getting my brand new Grotti blown up with sticky explosives. I doubled back to where the offender was after about 5 minutes of calling insurance and collecting my car. The griefer was getting his little junker tuned up at the mod shop, so I laid down 3 stickies by the exit and waited for him to pull out. He did, and I detonated my trap, seeing his car explode into pieces. To my dismay, he was alive due to a period of invincibility leaving the shop, but I quickly pulled out my AR and went to town.
Those are some of the best aspects to the free roam elements in this game, how revenge and aggression all come together in some of these interactions.