Windshield Wipers Fixed!
I took the Focus back to the Service Manager along with printed- out copies of your responses saying he was a b.s-er - just in case.
Again I demonstrated the problem, this time, with the S.M. following along with the Service Book Instructions. At that point he claimed that the service book was written poorly, but that the wipers are supposed to water in front and wipe in back and vice, versa.
So I challenged him to try any Focus in their sales showroom. He accepted the challenge and, of course, had to concede his wrongness. They repaired my car free - said it was a wiring problem and washed it to boot! Thanks everybody for your support!