As of a few moments ago, the following major highways are still closed/partially closed in the NYC metro areas:

Routes 18, 21, 22, 23, 202, and 206 in NJ
In NY: Bronx River Parkway, Saw Mill Parkway, and the Hutchinson River Parkway. Other highways are seeing massive delays and congestion, especially where local roads may be impassible.

It’s a mess.