Is there someplace to wait in car for flight arrival

There is big parking but it will b charged but if you go to depart to pick up u can wait 10-15 min

There's a free lot designed just for that and it's pretty close to all the terminals.

This is from their website about their cell phone lot: If you are picking someone up at EWR, use our free Cell Phone Lot waiting area. Located near the airport's entrance, adjacent to the P4 Parking garage, the Cell Phone Lot is less than five minutes away from all terminals. (GPS coordinates - Latitude: 40.695213; Longitude: -74.184601).