One duplicate delivery ticket described in section 212.2 shall be delivered to the vendee and the other duplicative delivery ticket shall be returned to the vendor or retained electronically by the vendor if approval from the department has previously been granted. Upon demand of the department the person in charge of the load shall surrender one of the duplicate delivery tickets to the person making such demand. If the duplicative delivery ticket is retained, an official weight slip shall be delivered by the department to the vendee or the vendee’s agent.