(a) A hotel owner or keeper shall post a card or sign in a conspicuous place in each hotel room stating:
(1) the daily room rate; and
(2) the date the card or sign was posted.
(b) An increase in the daily room rate is not effective until the 30th day after the date a card or sign with the increased rate is posted.

(c) The owner or keeper of a hotel having 20 or more rooms shall give a guest assigned a room a ticket showing the daily room rate being charged for the room. The room rate on the ticket must conform with the rate posted under Subsection (a).