You know you'll get pulled over if you have the gun stored illegally. That's Murphy's Law.

There's only one way you can do it with no fear of getting stopped by the po-lice. Follow these instructions carefully:

1) Buy a 1980's economy car, remove the rear bumper and weld a receiver hitch to the car.
2) Get a tow dolly, and use it to couple up a larger, more beat up vehicle to the economy car. Fill both cars with car parts from yet more vehicles.
3) Use tape to write 'IN TOW' on the rear window of car #2.
4) Drive in the right lane at 5MPH under the speed limit, and be sure you are always heading South towards old Mexico.

No cop will ever think of stopping you.