Everybody here complaining about CDM clearly doesn't realise that staff can just warn people who CDM, as they always have been able to, or a blueprint could be implemented for police cars (just like the lambo). There's a way to make a "police car" ingame, and me and a couple of people use it and it is extremely fun. Just turning your lights on when someone is speeding is fun because they get the hint most of the time that you are chasing them with police lights and try and drive away, causing a police chase.
There is a good way of creating it so there aren't problems with it, and I'm sure chute and EMP can do it.