People, tilting your number plates wont do squat....
You have headlights, they are designed so that light, like that "invisable light" from the lidar, gets reflected from all different angles straight out the front of the car.
Works for radar waves also.
Any passive technique wont work either, by the time you've been notified and hit the anchors you've been speed locked gaurenteed.
Any active method is highly illegal and the tickets are way more cash than even a few speeding tickets.
Moral of the story, DONT SPEED unless its on a track.