Here in Charlotte, North Carolina, we have at many intersections cameras capturing images of folks "running" a red traffic light. It is apparently a very cost effective revenue generator for the city. When people pay their fines that is. There is one character that had over 50 unpaid "tickets".
Anyway, to get to the point of the post. The preferred method of "getting even" with the city by those that were caught is to shoot paint balls at the transparent panel on the box housing the camera. The boxes are positioned at a height beyond easy reach for spray painting.