Can heat effect the smell of armani aqua di gio?

I recently went on vacation and left my cologne in my car here in Florida. It was left in there for three days. When I got back I sprayed a little on and it seemed to smell different. Does the heat mess it up, or am I just used to the smell and can't smell it as good as when I first got it. Does that mean that I can't carry cologne around with me in my car and Ill probably just need to spray it on in my house?|||Yes, extreme heat does change the chemical makeup of the cologne. So does age of the product. I would definately keep it and all fragrances at home or some place cooler.