They ask him for his location so they know where to meet George. He does a lot of umm and ahh and then just tells them to call him back for his location. We have been told over and over that George knows the area and everyone in it like the back of his hand. It doesn't stand to reason to me that George would not have been able to tell him where he was even at that point where he had ventured away from his car. Also, after they tell him they don't need him to pursue, you hear wind and heavy breathing for quite a few seconds before it stops.