Even people who try to ram the gates of a federal military facility still deserve their right to a fair trial.
Nope. There are huge signs posted along the fence of military compounds which read "Keep out! Weapon use!" (or similar, I only know the German version). If you enter nevertheless, the patrols on the inside will assume that you are part of an enemy force trying to sabotage the equipment as part of a starting military action. And if you act stupidly, especially in a way the patrol feels threatened, you might get shot.
Your entrance to such a prohibited area alone makes you an immediate and obvious danger as there is no other reason to climb the fence/break the gate.