I had the same years ago in my Series 1 Turbo.
They followed my write up to my drive.
I did ask if all was OK and they said they were doing checks on these types of vehicle, the PNC check came up that I live hear so all OK.
In a way I was pleased they were checking, as could of easily been someone else driving my pride and joy somewhere else.
Oh! they then stalled their car when turning round which made me smile
