Im on the goldy as well and I got around for about three years with only the centre rear view mirror in my sunny, and Im pretty sure you only need one rearview mirror. I was pulled over many times and it was never even mentioned to me that I needed door mirrors.
As for the wheels you can legally go two sizes larger in diameter, so you can have 14" wheels and there isn't anything they can do. So long as you dont increase or decrease the track (width) by 25mm.
Either the police officer was in a really bad mood or you did something to annoy him, cause that is pretty unlucky on your part Where abouts were you.