First of all, under the act, the police are not empowered to ask for your authorization to transport. In fact, they don't even know you have it. In fact, they don't even have the power to ask you if you have firearms in the vehicle.
This question you're dealing with is very much rhetorical. The bottom line to this is that if you don't have the piece of paper, you are in violation of the terms and conditions of your authorization to transport. That is a mandatory minimum of three years in jail, a mandatory minimum for not having a piece of paper that you do own.