(1) In carrying out subsection (a) of this section, an officer or employee designated by the Secretary, on display of proper credentials and written notice to the owner, operator, or agent in charge, may
(A) enter and inspect commercial premises in which a motor vehicle or motor vehicle equipment is manufactured, held for shipment or sale, maintained, or repaired;
(B) enter and inspect noncommercial premises in which the Secretary reasonably believes there is a motor vehicle or motor vehicle equipment that is an object of a violation of this chapter;
(C) inspect that motor vehicle or motor vehicle equipment; and
(D) impound for not more than 72 hours for inspection a motor vehicle or motor vehicle equipment that the Secretary reasonably believes is an object of a violation of this chapter.
(2) An inspection or impoundment under this subsection shall be conducted at a reasonable time, in a reasonable way, and with reasonable promptness. The written notice may consist of a warrant issued under section
32707 of this title.