That kind of crap drives me crazy, especially because it happens often. So many people in this world were never taught responsibility by their parents. What really gets my goat is if it would've happened to him he probably would have been screaming for someone's head. ******* hypocrites.
Along those lines, a couple of months ago I left my 996 in an airport parking garage for a few days. When I came back and approached my car it looked like a nice Mercedes was awfully close to the front of my car. When I looked to see just how close this moron had gotten I was friggin shocked to find the car bumped right up against mine - his bumper up against the fairly soft and flexible plastic "bumper" that 996's have. I was livid! I gave his nice new Mercedes a full power karate kick with my heel to the side of his fender (no damage to that tank, of course) and then left him a nice angry nasty-gram on his windshield asking him to pay a little more attention to how he parked in the future.
This sheit makes my blood boil!!
Sorry that it had to happen to you, buddy.