Any advertising copy or message now or hereafter existing which advertises a business no longer in operation under the same name, or product which is no longer available for purchase by the public, or a public or private event which has already occurred, or a candidate for public office, the election for which has already taken place, shall be removed by the owner, agent or person having the beneficial use of the building or structure or premises upon which such copy or message may be found, within ten days after written notice from the planning commission, and upon failure to comply with such notice within the time specified in such order, the city official or city's agent is authorized to cause the removal of the advertising copy or message, and the expense incident to such removal shall be the obligation of the owner of the building, or structure or premises on which the advertising copy or message is displayed. (Ord. 89-10 (part), 1989; Ord. 89-3 (part), 1989)