The United States Government shall seek the consent of the owner or the operator, occupant, or agent in charge of the premises to be inspected prior to any inspection referred to in section
6724
(a) of this title. If consent is obtained, a warrant is not required for the inspection. The owner or the operator, occupant, or agent in charge of the premises to be inspected may withhold consent for any reason or no reason. After providing notification pursuant to subsection (b) of this section, the United States Government may seek a search warrant from a United States magistrate judge. Proceedings regarding the issuance of a search warrant shall be conducted ex parte, unless otherwise requested by the United States Government.