A permittee under this part shall:
(1) Make no additions whatsoever, during the period of authorized sale, to the stock of goods set forth in the inventory attached to the application for permit.
(2) Specify the registration or permit number of the permit issued by the tax collector within any advertising of the sale.
(3) Refrain from employing any untrue, deceptive or misleading advertising.
(4) Conduct the authorized sale in strict conformity with any advertising or holding out incident thereto.