No person shall obstruct, impede, or interfere with any officer, employee, contractor or authorized County representative or with any person who owns or holds any estate or interest in any building which has been ordered repaired, vacated or demolished under the provisions of this Code; or with any person to whom such building has been lawfully sold pursuant to the provisions of this Code, whenever such officer, employee, contractor or County authorized representative, person having an estate or interest in such building, or purchaser is engaged in the work of repairing, vacating, or demolishing any such building or portion thereof pursuant to the provisions of this Code or in performing any necessary act preliminary to or incidental to such work or authorized or directed pursuant to this Code.
(SCC 322 § 1, 1978; SCC 1003 § 2, 1995)