the cops arent always the best source of law, actually.
If you must know, and cant look it up yourself, contact a lawyer. Its worth it if you are that concerned.
Check the Legal forum here on BFC - there are some excellent links there to resources where you can look up laws and statutes on your own. Very useful, I use them frequently.
As for you Gonzo - if that actually happened to you, I am sorry, that sucks. Sounds somewhat far fetched but given the state of the legal system, anything is possible I suppose. No offense meant.
Personally - I dont worry too much. If I do something stupid and get in trouble and there is a knife charge involved because in the act of being stupid I had a over the limit knife, then I probably deserve what I get for my stupidity alone.
I advise others to be aware of and follow their local carry laws to the letter. Personally - I dont always. I make a choice, that says "am I comfortable with X" as my life may depend on X, and if the answer is no, I go to something else. Sometimes that puts me outside the law by an edge or two or an inch or two. That is an intensely personal choice. I advise no one else to make it without a great amount of thought, and taking the time to be sure of their character. I dont advise anyone underage to do it, althought for a few more months I myself am underage.
Or call it civil disobedience and run with it - that seems popular with youth today.