Hi kmore,
Interesting thread! We certainly don't see many like this... 🙂
Apple's
specs say this:
_Operating temperature:_ 50° to 95° F (10° to 35° C)
_Storage temperature:_ -13° to 113° F (-24° to 45° C)
_Relative humidity:_ 0% to 90% noncondensing
_Maximum operating altitude:_ 10,000 feet
Now, unless you were using the machine for extended periods at greater than 35ºC (@ 100% humidity) I would say you should be covered. Even 90% humidity is
quite high at 35ºC. At that temperature and humidity the humidex could have been close to 50ºC. Even if the machine was just being stored at 45ºC, it should not rust. I doubt you'd see temperatures much higher than that, even in the Mexican jungle. I would give Apple a call. Tell them about the conditions, but also reference those numbers. The machines are made to be portable, and though I doubt they design the machines to operate perfectly in those extremes, they should nonetheless work and not be subject to damage. I believe you should be covered.
Again, just my opinion.
--Travis