Traffic jammed...

Another item to place in my whinge list is automatic traffic announcements. Don't get me wrong most are very helpful but it's the handful of stations that forget to turn the function off. There must be some kind of hidden signal that tells your radio to listen, and these few always seem to keep it going for minutes after. It's always the smaller local stations that are the culprits but i think it's a ploy to gain listeners! Who polices this i'm ready to complain.