No problem they are adjustable with the following items, a sledgehammer, a can of black spray paint or if you want to get real creative a nice heavy smear of Vaseline. Just make sure no one is watching!
What these cameras really do is cause people to slam on their brakes as they go through the camera zone and that causes more rear end accidents. Once thru they usually speed up again. My small town has cameras on all 4 roads coming into Olney.