My first reaction, having read her Google+ post and replies, was that this woman and her supporters are entitled nuts who think that by virtue of being ultra-geeky the rules don’t apply to them.
Of course you can’t strap displays to your head while driving. That’s not unclear at all. If you’re not allowed to watch TV while driving, you’re not allowed to do it by virtue of a head-mounted display, and there’s no way the cops can tell at all what you’re doing on an HMD.
She just keeps spinning stories to try to pretend that she wasn’t totally out of line.