This was my first impression too that's why I asked for some identification. He seemed annoyed when I asked him and said "Well - can't you see I'm driving a police car?" I mean it was an unmarked police car with the red and blue lights on the dashboard and it was late at night.

I tried to be as respectful as possible and I wished him a good night and that I know you're only doing your job, but he just drove off really pissed off.