Any individual who is the owner or keeper of a nondomestic animal at the time of the adoption of this code shall not be affected by the prohibition of possessing or harboring a nondomestic animal. All other provisions of this article shall apply. Neither this limitation, nor any other provision of this article, however, shall have the effect of permitting any activity or condition with respect to a wild animal which is prohibited or more severely restricted by regulations of the Wildlife Resources Commission.