Not terribly Tesla-specific, but it did happen on my S, so here goes: The top portion of one of my tire valves snapped off: This while attempting to use my valve wrench: to remove it. Now I can just spin the top broken portion of the valve with the wrench, while the body remains threaded inside the stem. Fortunately, it still holds air. Any thoughts on how to remove the remaining portion of the valve body? Thanks.