I have done research on “laser jammers” they are $500+ and they are some sort of a transmitter or something that mounts in your grill. It sends a “error” message back to the laser gun. I have seen a video of how this works. it is not some scam like on the radio.
And it is fully legal as lasers are regulated by the FDA (food/drug adm)
where as radar jammers are HIGHLY illegal.