I live near a couple of rural small-town speed traps. Yes, I have learned to set my cruise control to 45mph at the sign that is a ridiculous distance from town on otherwise normal highway to avoid tickets. The problem is, not everyone is a local, so you have people driving 45 and people trying to drive 60+ on a two lane highway with all the tailgating and reckless driving that entails. The speed trap isn't making anyone safer, it's just making those police departments richer.