MYTH: Glitter covering car will scramble a police radar gun. Actually the metal flake size and fleck density are limited by law. The Myth says "Completely covering a car in glitter will make it invisible to radar." I'm sure it will get police attention for sure!! This would be fun to see on TV!!

It sounds like you're trying to create "chaff". It's used by combat planes to confuse enemy radar.

The way it works is to dump a large quantity between you and the radar. It fools the radar into seeing a ghost wherever the chaff is thrown.

Just sprinkling it on a car would do nothing to hide it from radar. You'd have to launch it in front of/behind your vehicle. Any cop worth his pay just might notice a car shooting lots of confetti all over the road, and you'd get a ticket for littering as well as speeding.

Chaff was used to mask the formations altitude, heading, size of the formation as well as the size of each individual object including speed of the objects. Remember the stealth of the stealth fighter is mostly only achieved by having no right angles directly facing the radar signal. Thats mostly how it avoids a return. R.A.M. has only a small effect. We're only talking about one of these factors, speed. Conventional radar has a hard time picking up corvettes because fiberglass is a type of RAM. It only returns a signal off of their wheels and turn signal lenses or the reverse side of the rear view mirror. Not to mention I dont think individual states would bother making laws concerning it if it were proved to be false in other states testings.