Geez, if your garage can't scan codes for a 95 Ford, then I'd say it's time to find a new shop that isn't stuck in the 70s.
I mean, I can see not being able to scan an obscure import (like a 94 Hyundai or something), but IMHO their lack of technology is inexcusible. Lemme guess, they only have OBD-II (96+) scanners?