No person shall obstruct, hinder or delay, or interfere with by force or otherwise, the performance by the department or its personnel of any duty under the provisions of this act, or of the act of which this act is amendatory and supplementary, or refuse to permit such personnel to perform their duties by refusing them, upon proper identification or presentation of a written order of the department, entrance to any premises at reasonable hours.
N.J.S. § 26:2C-9.1