I want you to focus your writing on the driving behaviour of many police officers. I realize that not all of them only follow the rules when it is convenient, but there is a significant number of them. Why don't they follow the traffic rules like the rest of us?
I always held to the thought that if I couldn't follow the rule myself, I couldn't write a traffic ticket to someone else for that particular behaviour either. Since I knew what the rules were, I expected my driving to be an example for others to follow, not to criticise. This is what the public expects from the police and they are correct to complain when it is not delivered.
Operators of emergency vehicle operators may be exempt from following the rules set out in the Motor Vehicle Act. The exemption requires that the driver follow the Emergency Vehicle Driving Regulation when they do and in general must exercise due regard for safety.