“Did not appear to be needed”. . .
That’s just it–appearances can be deceptive. Therapy dogs are not only needed for the blind but can be utilized in many other situations in which a person’s ‘need’ is not readily ‘apparent’ to the casual observer.
Of course it could be also that for whatever reason this is approved by the bishop.
Or it may be totally unknown to the bishop, and the priest feels that this is something that is totally within his pastoral responsibility to permit.
Or it could be that this priest not only KNOWS the ‘rules’ but is deliberately breaking them for his own personal reasons which could range from egotistical “My church—my rules” to satanic, “I will bring the church down starting with my dog–get it–dog is god spelled backward, nyah-hah-ha”. . .
We don’t know.
If it concerns you, please ask the priest (nonconfrontationally), “Father, your dog is beautiful and so well-behaved. I’ve never seen a dog at Mass before; can you tell me a little bit about how and why she/he comes with you?”
In which case he can either answer you, or not. If he doesn’t want to answer, then really you have no other recourse than to write (again, very nonconfrontationally and charitably) to the bishop, stating that you went to church and saw the dog and in casual conversation with the priest about the dog’s presence, he seemed to be upset/defensive/uncommunicative and so you just wanted to bring this to the bishop’s attention if it is not already known to him, trusting as always in the bishop’s well known attention to detail and fatherly/pastoral care for his priests and all his flock, asking God’s blessing for the bishop, the priest, and all Catholics everywhere.
That way, you have made sure that if this was not known before, it is known now. And that if it was not known, the ball is in the bishop’s court and it is ultimlately up to the bishop to deal with the situation IF IT NEEDS TO BE DEALT WITH.
Plus, you will yourself have done your part not only with the letter but with the all important prayers and Christian charity and trust you will have expressed.
And may God bless you all.