It's common to walk around naked in locker rooms at gyms and what-not. I make it a point to remove my sunglasses before entering just so others can see my eyes, otherwise you'll come off as creepy. I've never seen anyone try to snap a photo with their phone either (never a good idea near people in-shape).
Now with glass-like tech, it's more subtle. You'll not only have to remove them, carrying an "always-on" camera in your hand might not resonate well either; you'll have to encase them away from light entirely.
Essentially, I think people would want some sort of indication that it's truly disabled in scenarios where they would be uncomfortable with it around. A whole new world of etiquette is about to open.
The last major change we had was with cell phones. That continues to evolve, decades after availability. I wonder what paths glass-tech etiquette will take?