N.J. Stat. Ann. § 39:4-80.1

1. A motor vehicle operator who fails to comply with a school crossing guard's signal to stop during those time periods when that guard is duly authorized to control or direct vehicular or pedestrian traffic pursuant to section 4 of P.L.1979, c.82 (C.40A:9-154.4) shall be fined not less than $150 for a first offense. For a subsequent offense, the operator shall be fined not less than $300.