"On the new rebel state’s first night, the atmosphere was festive and triumphant. Hooded men spray-painted the police station with slogans and anarchist symbols, renaming it the “Seattle People’s Department East Precinct.” Raz Simone, a local rapper with an AK-47 slung from his shoulder and a pistol attached to his hip, screamed, “This is war!” into a white-and-red megaphone and instructed armed paramilitaries to guard the barricades in shifts. Later in the night, Simone was filmed allegedly assaulting multiple protestors who disobeyed his orders, informing them that he was the "police" now, sparking fears that he was becoming the de facto warlord of the autonomous zone. A homeless man with a baseball bat wandered along the borderline and two unofficial medics in medieval-style chain mail stood ready for action."
This sounds like the real world version of a Shadowrun game lol. Honestly the city's response was probably appropriate, let them LARP for a while until they run out of bottled water or whatever.