I am a staff member of Changshui Airport. There is KFC on the west side of the B 1 floor of the terminal building, which is open 24 hours, and McDonald's on the B2 floor, which is also open 24 hours. Other businesses estimate that it will not be 24 hours. On the issue of clearing the field, they won't kick you out after you explain the situation. Waiting for your bonus points online.