An FBI report on 111/284
states that a resident of RATL 'would see ZIMMERMAN drive around the neighborhood with his car lights off.'
One of the inconsistencies in Zimmerman's SPD interviews, is on whether he could see Martin in the cut-through area. In the the earliest statements he indicated he could not. In later statements he claimed that he could, and sometimes said explicitly that his headlights were on.
I'm thinking the most likely explanation for this pattern, is that Zimmerman was driving without lights. He began to claim otherwise when he realized it undermined his claim to be afraid of Martin.
On the video, I note that the camera view diagrams suggest that for a car parked in the Zimmerman space, only its left front corner would be visible to the game room camera. Next, I note that the window affording this view is almost in the opposite corner of the room from the camera, and angled away from it. Add that the cameras are low resolution to begin with, and I'm doubting that a vehicle parking in that space without lights would be detected.