The applicant for a sidewalk cafe permit shall execute and deliver to the City upon a form supplied by the Director an agreement in writing and acknowledged by the applicant, forever to hold and save the City free and harmless from any and all claims, actions or damages of every kind and description which may accrue to, or be suffered by, any persons by reason of or related to the operation of such sidewalk cafe. In addition such agreement shall contain a provision that the permit is wholly of a temporary nature, that it vests no permanent right whatsoever, that upon thirty (30) days' notice, posted on the premises, or by publication in the official newspaper of the City, or without such notice, in case the permitted use shall become dangerous or unsafe, or shall not be operated in accordance with the provisions of this title, the same may be revoked and the sidewalk cafe furniture ordered removed. Every such agreement shall be filed with the Finance Department.