Be careful about putting things in someones vehicle without their knowledge. Many government facilities do random searches. You would be surprised by the things banned on most of the military bases on which I have served. "but I am just coming to watch the air show" won't be accepted as an excuse.

Your vehicle will be thoroughly searched, the many hidden spaces in the body will be opened and all your possessions dumped on the ground. You will then have the opportunity to put your vehicle back together.

Things like fire starters, propane tanks (the one pound tanks for small stoves make a dandy explosive), knives, axes and many other common survival stuff will probably be confiscated.

I was amazed at the hiding places they showed me in my vehicle. Took about 2 hours to put it all back together. I had left a pistol magazine (empty) in a small box that somehow got under the rear seat.

Nomad....been there, done that...