I wasn't at Avebury this year, having gone to Stonehenge from Foamhenge. However, if the drummers had been asked to stop so that the locals could get some sleep, then I'd assume that the request woud have been made well before 3am.

The only other 'trouble' (apart from a druid being offered drugs, which is a personal issue) mentioned is the smashing of a window at the Post Office, which would not have been witnessed by the vast majority but could well taint the image of all of the revellers.

Baz