The creature is inside the store at the second to last row (in the back of the store). Since the front of the store is made completely of glass (some of it cracked and broken from the atomic wind), it is possible to see into the interior of the store from the front (which is where the main parking lot is located). Therefore, I believe James is the only one who cannot see into the store since he is around back. However, everyone can hear the ruckus going on inside. It is dark inside the store since the EMP knocked out the electricity, but it only counts as shadowy (20% concealment).