Quote: Keep at it camping! If he's already responding, he's malleable. He's been living a different life for how many years? It's going to take a couple of months at least to get him used to his new life.
People do crate training to help a new dog learn manners in the house. I don't like crates, but Belle learned to stay on her bed when told. Our dogs do not have the run of the house, nor do they get to sleep in people beds or on furniture. (my husband's rule) No dogs allowed in the kitchen while cooking and never feed them from the table (my rule). If you have the attitude that being in the house is a privilege, the dog becomes much more respectful of your space.