I believe that you are protected by ADA (Americans with Disabilities Act) you could sue them.
Suffering since a teenager.Dx with AS Dec 2009. Dx with ulcerative colitis 1998, both knees replaced 2006. GP said I had "some kind of inflammatory arthritis" 25 years ago. It has taken 50 years to get a Dx.
Mobic, Nexium, Naproxin, Lipitor, 6-MP, Nexium, Miacalcam, MSContin and 2 Norco for break through pain