Well you have a mountain more nerve than me so hat off to you sir.

I would probably have caved in sobbing in the gutter whilst polishing his boot!!
On a serious note whenever I see a Police car I definitely do the limit whatever they are doing and only overtake within the limit - not that there has been much occasion to have to contemplate it. I have filtered past a police car and even stopped alongside with unbaffled can - a lot of it is fronting it out giving the impression that you are unaware of anything wrong. But even that gives me a sensation of a weakening bowel!!
This time you won, but its a risky game Baph!