I wonder wtf the guy was thinking, I mean, if he had actually managed to crush you with his car, the scratches on his car would have been Much worse than the keying you gave him.

Crazy road rage... guy's clearly mentally unstable.

On the plus side, his anger issues made him run into a stopped car, which while unfortumate for the other guy, Will go on record against him and may help with getting him off the road (if he has other rage induced accidents). I doubt the same would have happened if all he had hit was you on your bicycle then run off...