1) Priests employed by the government cannot trespass on military bases during the shutdown, and therefore may not perform services on the base. <-- I understand why the gov't would say this.
2) Priests cannot go to a neutral place and act as priests <-- totally indefensible and unAmerican.
Trespass?!? Most installations are open posts. Who else are they arresting visiting an installation? Military police enforce order on Installations — are they being told to arrest people who come on post? Wondering . . .
As I have said, priests have died to give the sacrament to people. Arrests, that is a piece of cake.