Undercover video recording "is not allowed" screeches the school board. yet.... NJ looks like a one party consent state https://recordinglaw.com/united-states-recording-laws/one-party-consent-states/ "One-party consent means that an individual can record conversations they are a part of without the other person’s consent. " plus if what happens is in a public place you also have that 'no expectation of privacy' argument.