Quoting Fatty McRunnerPants:" You'd think... right? But we're all only human. I think what frustrates me the most is we asked this ... [snip!] ... we still, by law, HAVE, to get an interpreter for them if they ask for one. Even if they're just dropping a paper off "
When I worked in customer service/retail I would get a deaf customer with a question from time to time and we would communicate through writing because I do not know how to sign. There was one time I broke down in tears after helping a deaf man for over an hour, through writing, figure out which camera was best for him. I wasn't upset that I spent a good deal of time helping him, I was upset that everyone but myself avoided him and I got in trouble for helping him for so long.
After that I began to learn some ASL, but not enough to really help me...I'd like to pick it up again.
If I were you I'd make a suggestion to your boss that someone who can interpret ASL come on board. I'm sure it won't get you far, but maybe plant that seed?