I’m often asked where to park when going to the city. I used to work in Harmon Meadow, where they have a mall with a free parking deck that is monitored by security.
The bus from Harmon Meadow to NYC (NJTransit 320) takes about 10-15 minutes, is only a $8.25 round trip, and runs pretty late into the evening. I’ve made a map in google maps to illustrate where to get it.