No home sale shall be conducted during hours other than those prescribed by the Director of Finance, and in no event shall any home sale be commenced earlier than 9:00 a.m. or last later than 8:00 p.m. on each day during the period for which a license is issued. No home sale shall offer any merchandise for sale that has been purchased for purposes of resale at such home sale. Any new merchandise offered for sale shall be prima facie evidence of merchandise purchased for resale at such home sale.