The more recent FSD software versions do try to detect these. It will warn you about a "hands on defeat-device detected" before locking you out. Not sure how it

The more recent FSD software versions do try to detect these. It will warn you about a "hands on defeat-device detected" before locking you out. Not sure how it's determining this. Likely the interior camera seeing both of your hands at some point and the steering wheel still saying its detecting pressure. Or maybe it detects the amount of pressure against the wheel, and obviously a human would result in varying amounts of force vs. probably a consistent amount of force if its a weighted stationary object.