30. Unless otherwise obliged to do so, every person contemplated in section 29 shall no longer be required to give security or a certificate of insurance or of financial responsibility contemplated in the Automobile Insurance Act(a) if prescription is acquired; or
(b) when he has furnished a proof of payment of the damages caused in the accident; or
(c) when he has been exonerated by a final judgment of all responsibility for such damage resulting from the accident.