(c) driving through a school crossing as defined in R.S.
39:1-1 knowing that juveniles are present if the municipality has not designated the school crossing as such by ordinance or resolution.
A map or true copy of a map depicting the location and boundaries of the area on or within 1,000 feet of any property used for school purposes which is owned by or leased to any elementary or secondary school or school board produced pursuant to section 1 of P.L. 1987, c.101 (C.2C:35-7) may be used in a prosecution under subparagraph (a) of this paragraph.
It shall be no defense to a prosecution for a violation of subparagraph (a) or (b) of this paragraph that the defendant was unaware that the prohibited conduct took place while on or within 1,000 feet of any school property or while driving through a school crossing. Nor shall it be a defense to a prosecution under subparagraph (a) or (b) of this paragraph that no juveniles were present on the school property or crossing zone at the time of the offense or that the school was not in session.