I don't quite understand how this detail is supposed to work.
I think there needs to be a sign:
"To orient mirror for ADA use, place hand on top of mirror and gently pull away from the wall until the hinges lock. Now sit back down in your wheelchair and use the mirror.
~Kent State University"
Interesting...this is apparently the mirror in a public men's facility in a dorm building.
ADA Accessibility Guidelines for Buildings and Facilities*
As amended through September 2002