I happened to recall the time I did this, just now, as I was planning a trip involving said airport.
Here (and for sake of a wee bit of book promo) is a short extract from the second book in my trilogy 'Staying out of the Midday Sun' based on my wrong fuel plight. Interestingly my mother was treated to a barrage of swear words that even I didn't realise I knew.
"I think we should fill up," said Holly as a service station came into view on the motorway. "It's much cheaper in Spain."
Peter pulled in and Holly filled the tank, revelling in the view of distant mountains while the fuel gauge clicked. She paid and they joined the motorway again.
Image from Breakeryard.com