Here's a plan for the DC fags who want to do something.
Arrange a meeting of as many people as possible to show up at Comet pizza. Not to cause a scene. Not to break shit. Not to harass anyone. Simply enter an open business. That is your legal right at this point.
At this point, you can go anywhere you want. No, it is not trespassing until someone tells you to leave the property. But if there are 20+ people snooping around, it will be like herding cats. Plus, if you act with confidence, the stupid staff will just assume you are allowed to be there anyway. You'll have plenty of time to document shit.
What happens when the cops show up?
Simply follow their directions. They don't want to arrest people. They simply want to resolve the situation. When they say "leave", you leave. Period. Hell, if the staff asks you to leave, you can do that too, provided you've had your fill of time snooping around.
There is no additional consequence for being int the basement, the kitchen, etc etc etc. That is a policy of the building to direct patrons here and there, not a criminal violation.
Is it clear?
I'm a cop, so I deal with this all the time. Someone at a bar is causing a disturbance. The bar asks them to leave. They don't. We show up and convince him to leave. He does.
Case fucking closed.
But in the mean time, you fuckers can document shit and leave with it.
Remember, it's not trespassing until someone tells you leave. There is not additional consequence for being in particular PART of the building.
The cops are not interested in arresting anyone if you simply comply with them.