If any building ordered razed, removed, or made safe and sanitary by repairs contains personal property or fixtures which will unreasonably interfere with the razing, removal, or repair of such building, or if the razing or removal of the building makes necessary the removal of such personal property or fixtures, the original order of the governing body may direct the removal of such personal property or fixtures within a reasonable time. If the property or fixtures are not removed by the time specified, and the governing body subsequently desires to enforce a judgment under the provisions of this chapter, it may sell the same at public auction as provided in RSA 155-B:9 or if without appreciable value, the governing body may destroy the same.