no the wont, your allowed up to so many percent, +1mph of the speed limit, i was told by my uncle (policeman) lol i cant remember the % though and apparently, also if your driving towards stationary speed camera they wont work, the only thing that will catch you if your driving towards it is the radar gun that the police use on the sides of the roads and apparently if your on a dual carriage way and change lanes over the camera lines in the road it wont detect you, never tried this myself but read it lol