Vox Mentis

Elevators can be disabled by a passenger with a fire key so that they only go to a floor when the button is held down from within (and the close door button also needs to be held to close the door) . You might be forced to take the stairs, but see if you can't get off on the wrong floor, take a staircase that doesn't end on the ground, that type of thing.
Sasha might know the building better than you, tell her it was actual syndesis, we need to get out of here in a nonstandard way.

Edit: now would actually be a great time to use Sasha's attention words if she isn't listening. Not to compromise her, just so that you can communicate the situation quickly.