Can the police bikes carry pillion?
If so, how about a deterrent angle to the problem - just a loose idea, but what if there were a few more police bikes (the 'stills' photography bikes could be reduced to compensate) with pillion cops?
Idiots who cause danger/threaten rider safety could be immediately identified. A couple of the pillion cops jump off and immediately detain them.
A police van follows the team cars and the miscreants are suitably dealt with in court.