Well Mister Nice... I found that card about parking at EWR. It's for a company called VISTA Parking which is a long term off site parking area and shuttle service to EWR.
I'm not sure about the exact location of the lot. Maybe our JERZEE friends can answer this question.
The card offers 50-percent long term parking at teh site when using your AMERICAN EXPRESS CARD. I would send it to you but it has MY NAME on it.
AMEX was the one who sent the card. Maybe they can help with a discount rate.
OR you could call VISTA PARKING at 973-465-9400 and ask about discount packages or if you could get a card for yourself.
OMNI: FUNNY THING that I got the card since I don't have a car (the parking in JERZEE CITY is about as costly as NYC.)