Whatever building she was going to passed the ADA requirement at the time of construction. Businesses are loathe to remodel buildings because of ADA compliance [1]. Therefore, the negotiations that your girlfriend was engaging in suggest that these were not negotiations, but trying to accommodate her issues. At which time, your girlfriend can take her business elsewhere or try to work within the parameters of the buildings ADA requirements at the time of construction.
Alternatively, you can file a frivolous lawsuit to try and force a business to fix the issue.
A good defense attorney would bring forward past activism to prove that the plaintiff's background suggests a history of causing issues for businesses. Who knows, this may show that she is one of the disability filers who just does it over [2] and over in what some claim are legalized extortion [3]. The defense is merely trying to show that she may be associated with such groups, seek counsel from these groups, and other items. That being said, do not give those passwords unless they get a subpoena, because they do not need it unless the judge agrees.
All this being said, I do agree with you on the ADA compliance. I walk through stores and bring up with employees that certain areas are not ADA accessible, tight walkways or weird floor movements, I AM LOOKING AT YOU FORMER HOLLISTER LAYOUT. The problem for actual disabled people are the jerks who take advantage of ADA to force compliance issues beyond a reasonable doubt and in the case of the Uber, I understand that people might not want fake service animals in the car tearing up their luxurious leather interior.
[1] http://www.utsandiego.com/news/2015/jan/19/disability-lawsui...
[2] http://legalnewsline.com/issues/tort-reform/254776-eight-pla...
[3] http://overlawyered.com/2014/04/nbc-affiliate-california-ada...