Have a laugh and go abit faster mate they can't do anything what so ever all they can do is report you to the police so they can catch u as for the speed guns there so un accurate the police don't use em anymore as the slightest movement will give a false reading there's an article on the web somewhere the guns have to be perfectly still mounted in a van to work soo therefor see how quick you can go past them try throw somit aswell with some nice verble abuse