to go in and grab pizza. 
And acts like I'm overreacting to be angry.
My first thought (and what I said) was that a running 'empty' car in a parking lot is going to be the target if someone wants to steal a vehicle.
2nd, that if someone saw DS sleeping in there and decided to call the cops then he could be taken away from us. I don't know if that's actually true or not - does anyone know where I can find laws (google is not helping me here). In Arizona.

I KNOW it's illegal to leave a kid in the car, here if not everywhere....
There was a poster up at the library all summer about leaving your DOG in the car, that if an officer found it the dog would be taken away & you 'could' be arrested.
Um....so a KID?!
DH doesn't believe it's illegal.
I'm really just pissed now that it would even occur to him....I don't know how many times I've left places w/out going in (ie - dropping off library books, mailing stuff at the post office, running into the store for a couple things) because DS had fallen asleep & I didn't want to wake him & deal with him fussy. OR if I HAD to do it then, woken him up & dealt with the crying for the few quick minutes. (and most parents have had to make that choice one way or another, right?) And we've had this conversation several times about how we used to wait in the car for various reasons as kids, and as parents now don't have that option.
DH says "well the pizza was done and it only took two minutes". (called ahead to order, just picking up, they don't deliver here....) OK - Except no way he could have known that his was done before he went in.
*and FWIW, not that it makes a difference, DS would not have gone w/ if we thought he'd fall asleep, it's still 2 hours before he usually goes to bed. It's about a 7 min drive.....











Any other time though I bring him in with me, no matter how inconvenient.

at my home yes.