I spent some time investigating and retagging it.  Apparently it used to be a part of Demarest Road which is why it was tagged that way.  I have added the appropriate tags and a note to explain it.

Can you Check the 1 lane Father Johns Lane to see if there is a sign?   NJ plots data show that single lane is actually on public property.  It is actually correctly named according to the center-line arcgis, but if there is no sign, I will update it's tags as well.