We pulled up to the curb where you would drop off passengers. I quickly grabbed all the luggage and stuff ran over to the JetBlue guy he started checking me in then when I was done I switched with dh and he and the kids were checked in. We paid for the fee (I think it was a couple dollars) tipped the guy and drove away to long term parking. I don't know abut car seats and such as we didn't take them on our trip.