[Frettingflyer]

I would not think twice about leaving it out while you work. If you were concerned about it acclimating then bring it into the cabin while you drive to your jam. I normally fly with one of mine every week, but sometimes plans change and it has to sit in the car for 2-4 days, never had an issue(Boston).
Cargo holds on modern large jets have “some” conditioning, but it isn’t nearly as warm as the cabin and I have witnessed condensation on customers guitars when they were kept in an airtight case, one that breaths would seem preferable.
Remember, your guitar won’t “feel” wind chill, only the temp.
As for hot, perhaps Ted will weigh in, but I think Jim is correct in what he has said. Carbon brakes on the plane I fly aren’t considered “warm” until 300 C fwiw.
Perhaps an email to Sean and Alistair would be in order?