Honestly, I think this b&b owner is ridiculous. It is non of her business how you sleep in the room if the baby is allowed in the room! I would not mention it anymore and NOT bring the pack and play.Why inconvenience yourself by hauling even more stuff ? I would just be sweet as pie and not mention a thing.
If the fire marshall allows a baby in the room a baby cosleeping is not an issue, there are not fire regulations for an infant sleeping with their parents!!