(1) A person does not commit the offense of interference with parent-child contact or aggravated interference with parent-child contact if the person acts: (a) with the consent of the person entitled to parent-child contact; (b) under an existing court order; or (c) with reasonable cause. (2) Return of the child before arrest is a defense only with respect to the first commission of interference with parent-child contact or aggravated interference with parent-child contact.