Taking the Kong for a Car Ride

Once in a while, Isaac really wants to take a toy with him when I take him out.  I dunno why.  I usually let him, though.  I don't let him take toys into the store or places like that, but he can take them on walks or in the car.  The other day, he really wanted to take his Kong with him.  He rode in the backseat, looking out the window, holding his Kong all the way to the store.