I saw a sign (on a fence, near T4) which stated: 1 day free at jfk's long term lot--you can pick up the voucher at the "service center". [where is the SC?]
This is the long term lot (on jfk property), not the off-site parking using the company "jfklongtermparking.com". I think there is a 3 day minimum.
I can't find this promo on the internet--has anyone else seen this promo?