No.
A "small" weight (< 1 lb) tricks AP into thinking that your hand is on the wheel. It actually takes quite a bit of force to override AP and take over steering.
Simple test: Try exerting a slight force on one side of the wheel (a finger on a spoke) to see this fool AP into thinking that your "hands are on the wheel". On mine, at least, there is no noticeable influence on steering.