Get a copy of the New Jersey Police Manual. They are approx. $30.00 from
http://www.gannlaw.com/
If you can't the prosecutor (NJ does not use the term District Attorney) is
obligated to let you use his /hers in your defense. You should just be able
to quote the state statute.
The cop was probably trying to just give you a hard time figuring you don't
know the law. I doubt the officer will pursue this further.
73
Bob, K2NNJ