Stop, fill up, use rest room, spend AMERICAN money, etc, before entering The Socialist Zone. Separate and appropriately store weapon in vehicle. (Use inappropriate language for "G" rated ears while doing so.) Drive completely through Socialist Zone. (It is appropriate to roll down the window and spit while leaving.) Once to other side, stop, holster weapon in an inconspicuous manner, fill up, use rest room, spend AMERICAN dollars. Wipe dust from sandals / shoes, just in case some got on there and continue journey. You may also do a happy dance. ;-)
Just sayin... Someone had to be a wiseguy.