I called my local Salvation Army office again today and was given 3 more numbers for you to try.
You may want to find out which office is the nearest to you. They said that you should ask for the "service extention" division, as they have smaller offices in rural areas.
They also mentioned that the phone company offers free TDY machines to the deaf. So maybe you could check that out. That way you could do your own calling from your own home.
They also gve me a web addy:
I have not looked at the site yet, so hope the addy is ok.
If you could get your car running and a TDY in your home, it would make changing your situation easier.