Want to share some ideas .
Laser reflectivity is the base on which laser can acquire speed of car.
One way I found to cut it down , in theory , is applied 2 coats of '' Mod Podge '' = a water base sealer . Easily removable on car paint .Sold at any hobby shop / Wallmart. It dries tranparent and serves as stone protection in winter time .
I apply one coat horizontal , then one vertical , use a plain brush paint , on the front hood subject to receive a laser shot .
As shown on the pic , I use a laser pen to see the reflection from my paint with and without.This ''dulling'' coating should make it more difficult for the laser to read the speed. Cannot test it right now -20 , but would like feedback from someone here .