at Ft. Snelling? If not inside, how about the parking lot? My daughter is a US Navy Sea Cadet, and I frequently have to pick her up, attend ceremonies, meetings, etc. there.
If you're not familiar with the location, I do not have to enter the secured area of the base. No gates or sentrys, until inside the reserve center building. I don't believe the building is posted in any way, but I will verify that when I drop her off for drill in the morning.
I could, of course, just ask them, but it wouldn't be as much fun!