Originally Posted by Pyle's BBQ
I would have it ready at the time you need to leave. The 20 minute ride in the cooler will give it time to rest. If you have any bricks laying around, wrap them in foil and put the bricks in the cooler with the turkey. This will give you some extra heat if you don't eat as soon as you get there.
Wouldn't a cool brick act as a heat sink and draw heat from the turkey? You may want to use a warm brick.