I'm thinking the GPS in the car is so he can find his way back home after he gets stinking drunk waiting in the woods for the deer that are too smart to be out walking around in the daylight.

*ding* we have a winner

Old saying Aimee;

Never go hunting with guys that bring more cases of beer on the trip than they bring rounds of ammo.

Well, Okay, it's not that old, I just made it up just for you.

Sounds like a good rule of thumb.
Actually, this guy is one that I don't think goes hunting to get looped, I think he takes it pretty seriously. He loves venison.