Sorry, just going back to the missing 10 minutes or so of the ITV footage and the possibility PR might have parked up to grab some food - there are a handful of takeaways over the road, the nearest being a Chinese which closes at 11pm (though if it's anything like my local it closes when there are no more customers) and a chicken place which is open til 1am. Also a tandoori and a burger bar which are more likely to have closed already as they look like proper sit down restaurants.
I'm going off streetview which might be outdated, anyone know if these places still exist? And if they might have CCTV inside or out which would prove if he went into any or not? If he didn't go for food, he's got little reason for parking where he did.