Anybody who wanted could go to the video court and plead the First Amendment, or try to cut a deal with the magistrate for an intermediate sentence, trade time served for community service, or something. On the other extreme, anybody who wanted to hang out for six months could just hang tight, The federales could send in supplies. After six months, sooner if they want, they could take down the fence and everybody could go their way. Of course, at smaller gatherings, a hundred or so folks, the feds might think it was more economical just to round everybody up and farm them out to surrounding county jails. So is this rule.
Thought needs to be focused on a broad unified opposition to proactive enforcement.
If government is the problem, perhaps the only solution is to change government.