Whatever happened to Walkerville?

We observed this weekend that the tents were gone. And:

The street permits that had allowed the protesters to set up camp were revoked at the request of the demonstrators on Friday evening.

But there's this Facebook "Events" page: "Walkerville #WIunion Vigil Only Under The Stars NO TENTS":

Time  —Today at 7:00pm - September 2 at 9:00am
Location  — Wisconsin State Capitol...

Camp free-style under the stars, no tents allowed.
ATTENTION: organizer David Boetcher's group, _We Are Wisconsin_, has canceled its permit with the city as of 5 pm Friday June 17. If you still want to VIGIL near the Capitol it must be WITHOUT a tent, AND self-sufficient!

Yesterday a little after 5 p.m., we walked and drove around the square. There was little sign of any protest activity:



(Enlarge to read: "Refusing to Eat — Day 04 Hunger Strike.")

I don't see how the city can accept free-form sleeping on the street, with no group taking responsibility. Homeless and transient people are not allowed to sleep on the street, so I don't see how special immunity from the laws can be given to other sleepers based on their political opinions.