The Director of the Division of Health or the officers or agents thereof shall have the right, upon presenting his badge, to enter in and upon any premises at any reasonable hour of the day or night to make any inspections or examinations required by any state law of this state or by any code, ordinance, regulation or order of this Division, to determine whether nuisances exist therein or thereon or to determine whether the provisions of this chapter are being followed or obeyed. Any person opposing such entry, examination or inspection shall, upon conviction thereof, be guilty of a violation of this chapter.