To be really fair, they should stop every car going 36 in a 35 mph zone. But I am glad they aren't completely fair. I'm fine with them picking and choosing a bit. They do this because while it is a law, few people know it. They also choose this because a driver not knowing this law can end up with someone else being killed. A jaywalker puts themselves in danger, as do bicyclist lawbreakers (I know, plenty of exceptions). But I like the general rule of focusing on situations where the lawbreaker puts others in harm's way.