Seriously, why do people do it?
Look, the important thing is: I gave them directions to a restaurant. It was just one in completely the opposite direction from the restaurant they asked me about.
They both have glass fronts. I walk past both of them on the way to work. They're pretty much the same restaurant except one's a pub chain and the other's overpriced sea food.
And they can't have wanted greater accuracy than that, otherwise they'd have known not to ask me.