Breath-testing ... it can happen any time, anywhere.
8.10am for example, 50m from my driveway on a school day.
I am not surprised I was breath-tested.
An observant police officer would have noticed my vehicle reverse out of our driveway, onto the wrong side of the road, before crawling hesitantly toward two police cars parked with flashing lights.
Having seen the patrol cars, I had assumed there was some sort of incident taking place, so I was contemplating turning around and driving out the other end of the street.