a tricky situation

So, mr pastasmissus is no longer the pastor. We're still living in the manse until we get housing sorted out. The church does not have a building, so our phone number was the contact number for the church (although I have to admit I took great delight in changing the answerphone message!), so we still get occasional phone calls about church stuff, which we deflect on to the church secretary.
But this morning we had a call that one of our members had died, and a request from their relation for hubby to do the funeral. This relation didn't know he is now the ex-pastor. He told them they would need to talk to the church secretary.
So what is the etiquette in this situation? It's made more difficult by this being a small town, and our church being a small congregation.
Yet one more thing they don't cover in the ethics course while training for ministry....