Well, given that parking in a bike lane carries a hefty fine, and that the cops don't seem to care, it's unlikely that they'd be around to notice or choose to do anything about scratched paint or a broken headlight.
I'm just thinking from perspective of type of offence. In Canada you can park in the middle of the road and that's a non-criminal offence. You're getting a fine if someone is bothered to write you up. Purposefully keying a vehicle on the other hand is vandalism, which is a criminal offence. If you get caught, you'd get a record and potentially worse than a fine. It's a different level of punishment.