They won't do that, of course. But I wish they would.
How many times have people said that the cops are essentially an extension of the public's will? If the public doesn't want them there, then they should leave.
Just walk away.
I figure that would last about a week before the National Guard is called in to police the wreckage of what used to be a city. For all the hell that people have thrown at the police in Ferguson, they're the first one to get blamed if anything goes wrong, while all the supporters of Michael Brown, the dope-smoking thug who roughed up a store owner and then assaulted a cop, continue to spew their lies and incite violence without any repercussions.
I'd just walk away and let the animals destroy their town.