This reminds me of the advance-buzz based roll out of the Segway. One of the effects was that various municipalities enacted unfavorable legislation with regard to them. I really think that the high profile was the issue. Glass is going to have the same problem.

I think there's a law here:

Disruptive technology receives backlash in proportion to its advance press. The best bet for any radically new technology is to become useful and ubiquitous below the radar.

If you asked people 20 years ago how they felt about everyone walking around with palm sized video recorders, pointing them and taking video at whim, they would've been upset and prone to legislate against it, but because the technology advanced in quality slowly and had a free ride on cell phones, it became accepted.