I don’t think confrontation is smart. They have plenty of weapons and the law is on their side. Except in certain situations (a Brit or Detroit shopkeeper or homeowner protecting his property from rioters the cops refuse to confront), it would be best to deal with the badge gang passively.
They’ll get the message (I think they already are getting it), and bloggers will help them figure it out (since the traditional media mainly sucks up to them), and since I don’t think most of them are corrupt, they’ll eventually reform themselves. Disbanding the SWAT teams may take longer. A lot of them are ex-military and they like playing soldier.
If citizens did confront them en masse, it would have to be a revolution that overthrows the government as well, since they have its backing.