While I applaud these ‘civil disobedience’ type measures, in the end they will lose, as all it takes is positioning some pigs downstream of the cameras and pulling over anyone who either the camera cannot read the plate, or is using a phony number for the plate, when compared to the vehicle characteristics (make, model, model year, etc.).
The way to fight this is to FIGHT THE GOVERNMENT, the people who are imposing these punishing schemes on people who simply need to drive from Point A to Point B, because the government will otherwise win - they ALWAYS do, in the end.
Depends on the local laws. If a dorito bag blew up off the road that may be grounds for not being fined. You’d still have to fight it in court and that’s a pain in the arse.
Or if you have a truck throw a couple sticks in the bumper and have it hangdown and obscure the numbers.
Plate flipper yep that’s easy to prove fraud.