Appears I have been rescued by my sons friend. Thanks for the help gentlemen.
Looked like a non-issue from the beginning.
You could have locked your firearm in the base security police's arms room with no repercussions from the get-go. They like to call it the "armory."
On the other hand, anytime you enter a military installation, you agree beforehand to a search of your vehicle (notices are prominently posted). Probable cause to search not required.
Good to hear you have found a solution, give your son my well wishes and thanks for his service.
Well shoot, you never said it was your boy's gun.