Cal. Civ. Code § 43-32-37

A hotel, campground, or RV park establishment may eject a person from the establishment premises, without return of the person's rental payment, as per the establishment's cancellation policy, for any of the following reasons:
(1) Nonpayment of the business's charges for accommodations or services;
(2) The person is engaged in disorderly conduct, as described in § 22-18-35, or has been the subject of complaints from other guests;
(3) The person is using the premises for an unlawful act;
(4) The person brought onto the premises any explosive or destructive device, as those terms are defined in § 22-1-2;
(5) The person is not a registered guest of the establishment;
(6) The person has exceeded the limitations for guest room or site occupancy established by the establishment;
(7) The person has obtained the accommodation under false pretenses;
(8) The person is a minor and is not under the supervision of the adult who has obtained the accommodation;
(9) The person has violated any federal, state, or local laws or regulations relating to the establishment; or
(10) The person has violated any rule of the business that is posted in a conspicuous place at or near the guest registration desk or inside each guest room, as applicable, of the establishment; except that no rule may authorize the establishment to eject or refuse or deny service in violation of chapter 20-13.