I can't speak for them but I suspect they figure that out either before or after the handcuffs go on.
But the way I see it they are the martyrs that get people outraged.
And it's not just them, but anyone who stands up to illegitimate authority, like the people refusing searches and traffic stops and whatnot.
It puts the bad guys in a lose-lose. If they do nothing people will see they have no power. If they overstep it infuriates the people. They either have to be seen as powerless, or for what they are, evil.
Evil doesn't like this choice. Evil and cockroaches prefer the dark.
It's not my gig, but I do admire them, and salute them for their patriotism.