Our Charger R/T was delivered without the front plate mounted to the bumper (here in upstate NY). I'm not drilling into the bumper to mount the bracket - period.
We keep the plate on the floor in the passenger side of the car in case we're stopped for that - and my wife HAS been. We weren't required or asked to sign a waiver. When the police state that the plate is supposed to be mounted on the front bumper of the car, we tell them we took delivery of the car from the dealer - a licensed NYS inspection station - that way, and the car has passed two subsequent inspections exactly as it sits. If they have a problem with it, we respectfully (with a smile) show them the plate on the floor, and suggest that they record the number of the NYS inspector on the windshield sticker and take it up with them. The dealerships name is on the rear plate frame if they want that as well.
We've never been ticketed for it.