Sleeping in a parking garage is not an easy thing. For one thing all the lights are on at all times, so it is never dark. For another, patrons tend to arrive early for their morning flights and drop their cars off, which results in the near constant clatter of people shuffling suitcases around while slamming car doors. I picked up maybe an hour of sleep total while I waited for somebody who actually worked there to arrive. At one point a mother and her child wandered by the car I was resting in, which was odd since it was nowhere near the drop off point and not on the path to the airport. Where exactly they were planning to go is a mystery to me, but they disappeared shortly after they saw me sitting there. I am a little surprised I was not confronted by a police officer at some point.
The flight to New England went smoothly, and I recall virtually none of it owing to having slept through the majority of the ride. The landing, taxiing and disembarkation of the plane all went as smooth as could be expected given the late hour of our arrival (around 1:30 AM or so), and we tired passengers made our way dutifully to baggage claim.