[nubg]

The question is ambiguous. It does not state that I want to wash the car there.

Why is the answer graded therefore on whether I took the car or not?

Maybe I wanted to meet a friend there?

GPT-5.4 might even price this in:

> "If somebody asks if they should walk or drive to a car wash 50m away, they probably don't need to actually wash the car there, otherwise the question doesn't make sense, they probably just need to get to that place efficiently. So walking it is."