He didn’t pay for a permit to do so. The police are there to protect capital, but under clearly-defined rules. Anyone who isn’t a fuckwit knows to pay the city its fees before doing something like this.

When JPMorgan Chase buys out a smaller bank, they apply for the permit in triplicate and pay all the fees, then make a donation to the Fraternal Order of Police. The cops then show up to attack protestors.