Never leave your pet in a parked car when the outside temperature is above 70 degrees. Not even with the windows partway down, not even in the shade, not even for a quick errand. Dogs and cats can’t sweat like humans, so they pant to lower their body temperature. If they’re inside a car, recycling very hot air, panting gives no relief, and heat stroke can happen quickly.
http://heatkills.org/the-facts/the-facts-about-leaving-dogs-in-hot-cars/
I dont own any animals that ride in a personal vehicle
plus in the scenario I was referring to the truck was running and the AC was on
This.^^^^^ A most difficult thing is not nagging my spouse about this. Over 70 is too hot, especially for a large, black lab and spouse does not comply.