Yes I included a feature to alert a patrol when you are chasing a vehicle.
Just Press F7, click the first button on the bottom-left (it's the vehicle tools menu) and just press the button "Alert a Vehicle Chase", and leave few words to inform the other patrols.
If you have a patrol colleague in your vehicle, he can do this for you, then you can be focus in the car chase.
My addon improve the policeman role and the patrol roles.