There always is the option to park on the far side of the lake at the location below. There is a bridge there to cross and you can put in there I believe. It is much more remote which may or may not make things worse. The good thing is not as many people know about it, but the bad thing is not many people travel by to catch someone.
http://maps.njpinebarrens.com/#lat=39.73457&lng=-74.479977&z=17&type=nj2007&gpx=
Guy