Didn't read the whole thread so sorry if this has been covered, but...

Can't the organizer(s) of the ride talk to the police and tell them politely that you guys are not looking for trouble and it'd be better for everyone if they stopped acting like total idiots? Perhaps that way you wouldn't change the timing and route of the ride every week, split up into 40 groups and ride all over town etc. because if they harass you then you will...