tbh few people i knew were having this problem. about 20 of them loved to just meet up and chat. same police officer told them to move along everytime they found somewhere to park and chat, like he was following them. police need to know that eventually people will have had enough of it and take into their own hands.
on about the 9th time this same officer pulled on to the car park they were on they all got out the car when he got out his, walked over (20 big chaps lol) and tipped his car on its side

not good
EDIT:
Also speaking to an ex-police officer this morning who deals with our IT. Sound bloke, told him ive had a few problems with police because i drive a saxo. He told me when he used to be on duty with his fellow officers they would play snooker if they were bored. they would pull a car over (usually for no reason) and jot down the colour of the car they pulled. when they got back to the station each patrol car would tally the points and see who won...no bullshit