without authorization is not allowed, nor is misusing park resources, defacing park property, etc. Some have set up armed checkpoints on public roadways. Others have made explicit public threats to shoot to kill public officials if they move to remove them from these public facilities.

If I were to "occupy" one of my favorite buildings in the Great Smoky Mountains National Park, or refused to abide by the park rules for overnight stays, I would without any doubt be confronted by park rangers and be made to comply or face arrest on any number of charges. Never mind if I took up residency in the park admin building with a rifle and explicitly threatened to shoot to kill any public official who tried to dislodge me.