A promoter may not allow an exhibitor to do business at a show unless, before the show, the exhibitor submits to the promoter: a photocopy of the trader’s license of the exhibitor; or an exhibitor’s affidavit in accordance with § 17–1803(d)(2) or (3) of this subtitle. The exhibitor’s affidavit or the photocopy of the trader’s license shall be displayed conspicuously during the show. Within 7 days after a show ends, the promoter shall submit to the Comptroller the exhibitors’ affidavits.