I work at newark airport and live off of grove street. I don't have a car here and take the path/bus every day for work. Super easy! The 62 bus runs about every 20mins and even more frequent during peak hours. Once you get off the path, just go down the escalators and exits to the bus lane are your right by mcdonalds. Bus lanes are covered so rain, snow, etc, you'll be ok! The 62 also drops you off directly in front of EACH terminal so you're covered there too! Only about a 20 min bus ride too...