I don't take mine outside like that. Also, I'd say anything over an hour outdoors (assuming the environment isn't suitable for them) is a stressful experience for the snake, imo. Snakes aren't dogs or even lizards, and there are more risks not only to the snakes, but the already negative impression the public has of snake keepers.
Similar thread a couple days ago! https://ball-pythons.net/forums/show...en-your-snakes