If the Police Chief denies or revokes a parade permit, this action shall be final unless the applicant or permittee shall, within two days after the receipt of notice of the denial or revocation, file with the City Manager a written appeal. The City Manager shall, within 24 hours after the appeal is filed, consider all the evidence in support of or against the action appealed and render a decision either sustaining or reversing the denial or revocation. The decision of the City Manager shall be final.