It shall not be unlawful and no prior court approval shall be required under this chapter for:
A person or entity providing electronic communication service to the public shall not intentionally divulge the contents of any communication (other than one directed to the person or entity, or an agent thereof) while in transmission of that service to any person or entity other than an addressee or intended recipient of the communication or an agent of the addressee or intended recipient.
This paragraph shall not apply when a school bus or school vehicle is used for a purpose that is not school related.
18 Pa.C.S. § 5704