If you don't like what they're doing then film them, get their badge numbers & then complain about them. If more people did it then there'd be less of this (http://www.youtube.com/watch?v=z86z2WlqJws&feature=related) kind of smug berk and his "I don't like what I'm hearing so I'm just going to ignore you" approach to policing.
I'd love to see how he coped with a shop assistant who just ignored him when he wanted something from them. I bet he'd have a complete fit.
Public servants, my arse.
Go on, do it - you'll feel better and they might - if they get enough of a browbeating - bloody well do something about it.