Nothing in this article shall prohibit possession
of alcoholic beverages by any such person while actually engaged in
the performance of employment pursuant to an employment by a person
who is licensed under Title 33 of the Revised Statutes, or while actively
engaged in the preparation of food while enrolled in a culinary arts
or hotel management program at a county vocational school or postsecondary
educational institution; however, nothing in this article shall be
construed to preclude the imposition of a penalty under this article,
N.J.S.A. 33:1-81 or any other section of law against a person who
is convicted of unlawful alcoholic beverage activity on or at premises
licensed for the sale of alcoholic beverages.