I'm worried about individuals impersonating these nameless, unidentified, fatigue-wearing Feds in unmarked vehicles kidnapping and disappearing a couple of these protesters.
The more successful the leftists are at eliminating the Police, the more private "Regulators" will become a fixture of the streets. What you describe will happen as a natural consequence of the left's actions in this regard. The citizens WILL have law and order, one way or another.
And we, as a nation, will have taken a giant leap down the slippery slope of tyranny.