A local bar has banned them already with a sign that basically says "this ban is as much to prevent you from getting punched as anything else".
In theory they shouldn't be a problem because I think there's a little LED that lights up when the camera is on, but in practice people don't know that so assume the worst.
It also doesn't apply outside the US (there's a whole planet out there guys) so regardless of the nuance of its construction, it isn't relevant here anyway.