I know quite a few cops in several cities, counties and states and most (if not all of them) will let off friends/family from traffic tickets.
Saying something bad about some cops doesn't mean that all cops are bad.
I didn't say cops don't let people off tickets, I know they do. It is the general characterization I have issues with. The 3 statements I listed are usually at the top of list for people who don't like law enforcement.
Oh wait - forgot the racial motives of most cops too - that is a big one.