If the Construction Official shall find that any sign is unsafe or insecure, or is a menace to the public, he shall give written notice to the owner, agent or person having the beneficial use of the premises upon which such sign may be erected. If such owner, agent or person fails to remove or alter the sign so as to comply with the standards herein set forth within 10 days after such notice, such sign or other advertising structure may be removed, or altered to comply, by the Construction Official at the expense of the owner, agent, or person having the beneficial use of the premises upon which such sign may be erected. The Construction Official may cause any sign or other advertising structure which is an immediate peril to persons or property to be removed summarily and without notice.