Violation of VA State Law section 29.1-505, violation of posted regulations

I went biking in a Park on July 25. A Game and Inland Fisheries police stopped me. He showed me the signs at the entrance where I got into the park that states it is for fishing boat lawnching only and not for other uses and violators will be charged with tress passing bbra bra. He gave me a ticket with charge of "Violation of Posted Regultion" and the court date is October 30, 2009. He did not charge me tresspassing. I am supposed to show up in district court (criminal). If I get sentenced, will that be a criminal charge and go with my record? How much will be the fine? I am filling in forms for governement contractors job. In the Declairation of Federal Employment form, one question is "Are you now under charge for any violation" Should I answer yes or no?