Traffic fine letters

A man was driving when a traffic camera flashed. He thought his picture was taken for exceeding the speed limit, even though he knew he was not speeding. Just to be sure, he went around the block and passed the same spot, driving even more slowly, but again the camera flashed. He thought this was quite funny, so he slowed down even further as he drove past the area, but the traffic camera flashed yet again. He tried a fourth time with the same result. The fifth time he was laughing when the camera flashed as he rolled past at a snail's pace. Two weeks later, he got five traffic fine letters in the mail for driving without a seat belt.