That's true, but whether someone has authority to show up at your door and ask questions about your sex life or whatever is purely based on church authority, not legal authority.
No argument with that. Doesn't that ecclesiastical authority hinge on voluntary affliation though? Could the Baptist minister in the scenario make a legitimate claim of either pastoral interest or eccleisiastical authority after the fact when the police have at my request, contacted him and asked what business he had with me?
Again, not an attorney, but doesn't a church that imposes sanctions which under normal circumstances might constitute viable torts need to be able to show that volutary affliation?