The car is still a dumb object that you own that hurt me, and as a result someone is still paying my hospital bills. You might blame your mechanic, if he did a poor job of brake maintenance. When he attempts to defend himself, how is this "intent" mishmash going to fly? "Your honor, please ignore that there are several RFCs defining how one installs calipers, none of which I followed! It was clearly my intent for the brakes to work!"

Also, I'm not sure your analogy works at all. In the first paragraph, you seem to analogize the car to the accused "hacker", while in the second you're talking about the supposedly "hacked" host. To be clear, the point of the car example is that a machine's intelligence has no bearing on how its actions affect the duties of its operators.