Maybe this is a response to the letter I sent! But maybe they are getting a lot of them.  The Pennsylvania AG has clarified the residency requirements:
It has come to the attention of the Office of Attorney General that there has been confusion over the applicability of Pennsylvania’s reciprocal privileges with regard to the residency status of an individual who has been issued a valid license/permit. It is the position of the Office of Attorney General that recognition within Pennsylvania is based on the issuance to an individual of a valid license/permit by the reciprocal contracting state, and not on the license/permit holder’s place of residence.
So there you have it folks. If you’re a carrying on a non-resident, reciprocal permit, you’re legal.