It’s not the Police’s job to be “neutral.”
Their job is to enforce the law.
In some cities the City Council has control over what the police can and cannot do.
If this is the case here, some other agency needs to investigate.
I wonder if anyone has looked into filing criminal charges against the Berkeley Chief of Police for not enforcing the law. As you rightly note, the Code Pinko people violated a good number of laws and the police are REQUIRED to take action if a violation happens before an officer, unless it would be a situation where the misdemeanor would be ignored in order to stop a felony.
Recruiting offices and their “employees” are Federal property...
Local law enforcement have been instructed on a variety of issues to NOT enforce Federal law...
(i.e.: Illegal immigration, et. al.)
So this whole idea about allowing people to choose to patronize these particular offices seem to spur some into breaking Federal law...
U.S. Marshals, U.S. District Attorneys, U.S. Military police and law enforcement should be brought into play...
I think it would be prudent to call the area commanding officer of that recruiting district and see if they would at least bring into play the military law enforcement assets and let them do their thing...
If the civilian Federal authority is dragging their heels (no big secret there) then the military should bring their assets into the area...