(a) Revocation of Registration. The Mayor is hereby authorized and empowered to revoke the registration of any registrant under this article who, having been notified of his violation of any of the provisions of this article, shall fail to remove or abate such violation within ten days after notification. The revocation shall be final and the person affected shall not be eligible to receive a new registration certificate within thirty days after such revocation.
(b) Revocation of Permits. The Mayor is hereby authorized and empowered to revoke any permit issued under the provisions of this article upon failure of the holder thereof to comply with any of the provisions of this article. He is also authorized and empowered to revoke a permit for the erection of any sign which, by reason of its position, shape or color, may obstruct or interfere with the view of or be confused with any authorized traffic sign, signal or device.