Confused Yet Excited (Question Inside)

So, I'm picking up my new Juvenile Male Pinstripe BP on the 10th. I'm entirely excited for this adventure of snakes. It will be about an hour there and an hour back, not including how long the exchange(My tranportational driver, AKA my dad, is a chatty Cathy) will be. I have to let my UTH heat up and I do not have an extra tub (small one that is)to put him in. So, my question is, what can I put him in for the car ride home, the less stressed the better (the car ride certainly won't help)?

If you are getting him from a breeder, the breeder will most likely have a deli cup for him... otherwise I use cheap dollar store pillowcases. If the bp is small enough, a typical tupperware container with a few holes punched in the lid works just as well.