I did everything just as it said to do, including "make test".
I had already installed the module, before I even came here, and it did not work, that is why I came here, seeking the monks wisdom. So, since I installed the module, first, then did everything I learned here, how would I do your suggestion? (remote shell I know how to do, but not "following the directions 'in situ'" What do you mean by that?).

I did test with real zip codes, it still fails at that lookup. It passes the set new instance ok, but then fails at the lookup, using the new instance.

Looking forward to clarification. Thank you much!