Halloween in SF

I participated in this year's Halloween SF put on by the City of San Francisco and the Entertainment Commission.
I provided a inflatable screen and projector for running Halloweenish movies.
The inflatable screen is rated up to 25mph winds. That's what we had.
The screen was whipping and bouncing around. I had my finger on the switch ready to kill the blowers at any minute. The screen surface itself is a 4 way stretch material fastened to the frame. It was stretching/billowing 7ft out in front of the frame. Very trippy for watch movies. Talk about true 3D.
It was a cold and windy night by the bay. It was the first time the city has tried to hold a civic halloween party in the ATT Ball Park parking lot.