Since when do you need to be hearing to open a door?
Seriously, though, I hate drive-throughs. It's probably my autism. The speaker-things are too loud (they're so loud I can't understand them), and besides, if I go to Taco Bell in Waukesha, my fiancee and I can order in ASL if we go inside because there is a Deaf employee. Yeah, they really have a Deaf employee, so anybody who's Deaf can order without trouble. They also have people who can take orders in English or Spanish, too, so I can order in any language I know. We never go through drive-through because she can't hear the speaker-thing at all, I can't understand them, and they usually get my order wrong if I use them.
With banks, can't you send a note saying you're deaf through the sucking-thingy? I don't need to (I'm a go-inside person everywhere unless the inside is closed--but then I have to interpret for my fiancee if I have to use a drive-through), but I know most tellers I've seen will read it and send notes back and forth if the first one says you're deaf.