I'd definitely go through an FFL, but I guarantee it doesn't happen 99% of the time. It's undetectable unless someone admits to it. Crazy law, for sure.
So by selling their stuff at what the market allows make them douchebags? So you think they should sell it at the old price and let some other guy sell it for double? Or should they just keep everything?
The last time I used my discount they were $398 for any standard gun that is not 10mm or 45. The 10mm and 45's were $468.
Don't remember what the comp and long slides were going for.
I would worry that it would have the opposite effect you are looking for. It could just bring laws to stop considering your car an extension of your home as far as firearms go.