After Norman returned home with Norma's corpse, he went down to open up the motel and met a mother and her two sons who wanted to book a room to stay.
Later that evening after Norman invited Dylan to dinner, the latter saw one of the motel rooms occupied and knocked the door, telling Amy that she needed to leave as Norman was mentally ill and should not have checked them in. He gave her some money to check into another motel and they left.