Photo Blocker Fights Trigger-Happy Traffic Camera Will Cost You Ca$h.PhotoBlocker Enhanced. We all know red light and speed cameras are for profit. They have nothing to do with safety. The best way to avoid photo radar is to make your car's license plate invisible to the cameras. They can't ticket what they can't see. The spray works the best. This is what the cops don't want you to know. Photo enforcement is big brother. You can't trust the government. Consider yourself warned!