(a) Every applicant for a state license for the sale of liquor by the drink or for the sale of beer for consumption on the premises claiming that the premises for which such license is sought constitute and are operated as a restaurant, as herein defined, shall, on each application for state license and on each application for renewal of license, state that such premises constitute and are operated as such restaurant. Upon issuance of state license for the sale of liquor by the drink or for the sale of beer for consumption on the premises, for premises constituting and operated as a restaurant, the licensee of which has made the proper statement on the application, the director shall indorse on the face of the license the fact that it has been issued to a restaurant as herein defined. Unless such statement shall have been filed with the director and his said indorsement shall appear on the face of the license, the restrictions contained in section 23-943, Idaho Code, shall apply, notwithstanding that such premises may in fact constitute and be operated as a restaurant, and the posting of signs as provided for in section 23-945, Idaho Code, shall be required. The filing of any false statement on the application as herein required shall be grounds for suspension or revocation of license. If premises, licensed as a restaurant under this act, subsequently ceases to meet the qualifications of a restaurant, as defined in section 23-942, Idaho Code, the restrictions contained in section 23-943, Idaho Code, shall apply and the posting of signs as provided for in section 23-945, Idaho Code, shall be required. In such event the licensee shall advise the director, by mail, that his premises no longer constitute a restaurant, so that the license may be modified accordingly.