I saw a bunch of pics on Imgur the other week that showed bizarre wheelchair access fails, like ramps leading up to nowhere or ending at brick walls, or so steep no one could possibly use them, e.g. (and the only one I could find alas),

https://imgur.com/gallery/qLLtm

I don't think you need a lot of dialogue, you could convey plenty of feels just by showing poor planning by idiot people that denies someone with a disability their basic needs.

A guy in a wheelchair once asked me if I could push him the last 200-300 yards to his building, I said sorry no can do. He was astonished, I don't think anyone had ever refused before. Long story. Bummer for him, though.

-Derek