This article shall not apply to:
1. An owner reclaiming his dog or cat from a releasing agency;
2. A releasing agency within a locality that has adopted a more stringent mandatory sterilization ordinance; and
3. A local governing body that has disposed of an animal by sale or gift to a federal agency, state-supported institution, agency of the Commonwealth, agency of another state, or licensed federal dealer having its principal place of business located within the Commonwealth.