In addition to all other rights and powers of the Authority by virtue of the franchise or this Ordinance, the Authority may terminate the franchise and all rights and privileges of the franchisee thereunder in the event that the franchisee either:
(a) Violates any provisions of the franchise agreement or this Ordinance, or any legal rule, order or determination of the Authority, City or County where such violation remains uncured ninety (90) days subsequent to receipt by franchisee of written notice of said violation, except where such violation is not the fault of the franchisee or is due to excusable neglect; or
(b) Becomes insolvent, files bankruptcy or abandons the franchise or fails to pay any franchise fee when due.