Whenever the owner of the premises on which the vehicle(s) or parts thereof is located or the owner of the vehicle(s) or parts thereof requests a hearing (hereinafter called "requesting party"), the department head shall issue a hearing notice to the requesting party allowing that party to appear before a hearing examiner to show cause why the vehicle(s) or parts thereof is not a public nuisance and should not be abated by the city. The hearing notice shall be served upon the requesting party either personally or by mailing a copy of such notice by certified mail, postage prepaid, return receipt requested, not less than five calendar days prior to the hearing date. (Prior code § 61.06.605)