Thanks for the offer of a guide out. I had planned to fill up at the Stockton turn off services, but the Tesco's one was cheaper, hence the sudden turn-off at the roundabout. (Just as well, as the other one was actually closed when I went past!)
Yes you where right to get your petrol there but you did give us a fright and we did spend sometime in the town looking for you but as long as you got out ok then thats fine.