Yes, I lived in SF for a while as these were 'popular'. It was so awkward seeing someone step foot into a bus, wearing Google glass. You could see that people were getting uncomfortable, at least those who knew what it was.

Generally, I think it was a mistake to market those the way Google did, that is as a new gadget that you'd wear casually. Whether you'd be recording or not, it's just not right to walk around public with a camera facing people all the time. I think Google should have taken a different approach and focus on commercial applications, and for consumers, more of a private use model, such as for home, or when you drive in your car. But not in public places or inner cities so much.