Where I live now isn't as bad but still a pain at weekends. I've had people in my front garden watching club cyclists (presumably some race was on), the road at the top of the hill is regularly blocked with cyclists gathering en masse so they can bomb down the hill in a group. People complain all the time. I'm yet to see the police ever interfere in any of the races or time trials when the times and dates are known. No chance of catching random bad cycling behaviour.