The person using a vehicle for the purpose of its being furnished in pursuance of a direction under paragraph (b) of subsection (2) of section one hundred and sixty-six of this Act shall be deemed, as respects any claim in respect of injury or damage to any other person or property, to be so using the vehicle as a servant of the Crown, F2and section thirty-five of the M1Road Traffic Act 1930 (which relates to insurance against third party risks) shall not apply to the use of a vehicle for the said purpose.