"If the driver was tired, why did he idle his rental truck for 12 hours in a Walgreen's parking lot?!!! Why not shut the engine down and take a nap? "While usually the answer is because it's hot and humid... last night wasn't all that bad.
But even with good weather, that's not an area of Florida where I'd want to roll my windows down and take a nap.
I wonder what the dogs alerted on...??
For humidity and safety reasons? Yeah, that could be it. Still, even with the air conditioner going full blast, spending twelve hours in a idling rental truck is a bit excessive.