This sound crazy. It makes me laugh just thinking about it. How about on the license plate make a device that will shake the license plate side to side violently to the point where its so bad that the picture just shows a blur on the license plate. Could this be done. It would of course look hilarious when viewing it from another car. Because when you wave your hand infront of a digital camera real fast it blurs even with a quick shutter speed it still does.