I just saw this in the paper and wondered if anyone else was going?
http://www.zombieorama.com/
Basically, there will be a zombie gathering at the park on 1st and william followed by an open air showing of shaun of the dead, followed by a crawl thru certain local nightlife. All the details are in the link, like maps and times and locations.
I saw and randomly heard about this... I dunno about the logistics, but I believe SF has done things like this with um...
minimal casualties and incidents - or outbreaks that I know of... :P
It may be worth looking into. :D