I woke up at midnight in that church parking lot in Louisiana, unable to breathe. My car is airtight with the windows up, you see, and I always leave them up when I'm sleeping for safety and bug-proofing (I'm super-sensitive to mosquitoes, and nowhere in Louisiana is far from swampland). A carful of air usually lasts me through the night with minimal discomfort, but for some reason, that night it just wasn't enough.
I sat up in the backseat and pondered my options. I could crack a window and ventilate the place for an hour or so before going back to sleep, but who knew how many bugs would let themselves in, lured by the delicious scent of my skin? I could suck it up and go back to sleep, but I'd read too many horror stories of oxygen-deprived mountaineers to sleep at peace in palpably bad air. The only choice left was to drive on to Arkansas and catch up on sleep when I got there.
So I did.