jurisdiction ends when you exit thru the fence. Until then, your authority is clear and what you see and/or hear is subject to what you see or hear...
IMHO.
Then again, if you officiate shaving age softball in our town and later, a player comes up to you say, in a bar or shopping mall, engages you in argument or voices objection to a call you made in a previous game (or worse), that player has violated a M.A.S.A. rule and is subject to disciplinary action including disqualification.
FWIW