Back in 1992 when I was 16, I got a ticket for jumping the turnstile to the subway back in NYC (I forgot my student pass in school and didn't have any money). I was afraid to tell my parents, and quietly got the money and mailed in the payment. Never heard a word about it again.
In 1993, same thing basically, only this time I knew better and told my dad. We went down and explained what happened and the ticket was dismissed.
Both times I was not arrested, transported, fingerprinted or anything. I didn't even have ID. The officer just asked me what my name and address was and I told him; he wrote the ticket an sent me on my way.
I have absolutely no documentation whatsoever regarding these incidents.