A. It is unlawful for any person to remove, deface or mutilate any notice, order, statement or resolution posted pursuant to the provisions of this chapter.

B. It is unlawful for any person to obstruct, impede or interfere with any owner or his or her agent or with any representative of the city when engaged in performing any act reasonably necessary for the execution of any order of abatement issued pursuant to this chapter. (Prior code § 5221.7)