Pretty much...it might be quit the surprise when the entire neighborhood turns out for ‘mutual aid’.
Considering the American response over the last few months, I have the feeling that in the circumstances you describe it will not be the citizens who have to hole up and try to survive. I bet they would go on offense and stay on offense until the threat of tyranny is over and its willing agents and complicit parties are room temperature, just root them out and destroy them once and for all. Hopefully it never goes there, but that’s what I think awaits any would-be Mussolini and his minions.