Just picked the truck up from the dealer. Talked to the mechanic that worked on it, he couldn't find anything wrong, no drain on the battery, starts fine. Mechanic said it was totally drained which shouldn't happen without lights or something major pulling juice off of the battery. Service manager said watch it for a few days to see what happens. I am going to park it again this weekend to see if it goes dead again. I have a trip to Florida planned a week from Saturday, don't need this happening again on vacation, so I hope it is resolved soon.