That still doesn't make sense. I'm going to use another car, or borrow a car to drive to a carwash where my car I want to wash is and then....I guess leave it there? Or leave the car I came in?
This isn't a viable out for explaining why AI can't "reason" through this.
But why would they reason through it in that way? You haven't asked them to listen carefully and find the secret reason you're a dumb-ass in order to prove how smart they are. If they default to that mode on every query, that would just make them insufferable conversational partners, which is not the training goal.
Let me put it this way. If you were to prefix the prompts they used with "This is an IQ test: ", I wouldn't be surprised if most of the the models did much better. That would give them the context that the humans reading this article already have.