I often shot the Capitol, Supreme Court, Jefferson & Lincoln Memorials in the 1980's. If I used my view, and tripod, I needed a permit. They were easy to obtain. At the Capitol, it got to the point where I would just call the person who issued the permits. She'd tell me to go ahead. When I was approached by Police, they'd call her, and she'd OK my presence. Same with the NPS, and shooting the monuments. It didn't require a lot of effort....
After the Oklahoma City bombings, things changed a bit. At the Capitol, I was limited in where I could set up, and escorted by an officer. I haven't tried post 9/11, though.
Congradulations for you! You follow orders very well, just like the "good" slave they want you to be.
The question then becomes, at what point does following orders break your sensibilities?
I love the wilderness and I love my trail cameras, all Fuji's! :) GA645, GW690 III, and the X100 which I think is the best trail camera ever invented (to date).