(A) For the purpose of making inspections, the Enforcement Officer is hereby authorized to enter, examine and survey, at all reasonable times, nonresidential buildings and structures.
(B) If entry upon the premises for purposes of investigation is necessary, the entry shall be made pursuant to a duly issued administrative search warrant in accordance with G.S. 15-27.2 or with permission of the owner, the owner’s agent, a tenant or other perso