Presumption at gunpoint. If you don't sign, then they arrest you for denying their presumption that you are subject to their jurisdictional authority. Then you have to go to jail, and have a hearing, in order to point out that they don't have any jurisdictional authority over you. Then the judge rules against you, while thinking (but not telling you) that by acknowledging that you had to reply to them at all, you are presumed to have agreed to their presumption.
What's the way out? R efuse to acknowledge police authority, get arrested. Refuse to acknowledge court authority, rot in jail. Be abused in jail. Wait. have lawyers throw tricks at you while you live on cheese sandwiches and fend off Bubba and are denied representation. In a few weeks, if your exhaustion doesn't make you slip up, they throw you out on the street and tell you not to come back.
Great system. Just what the Founders had in mind.
I know how the patriots at Lexington and Concord would have handled this sort of abuse of power.
Unfortunately, FR guidelines prohibit me from going into that much detail.
However I fully endorse putting an end to such abuse.