Turn off power steering in Park

My back hurts, and I use the grab handle when I can to help leverage myself in and out of the driver's seat. On cars with missing grab handles, like the Model 3, I use the steering wheel instead. But on the Model 3, the power steering remains on even when the car is stopped and in Park.  So the steering wheel falls away from me (basically rotates) when I tug on it to get out of the car. That's a problem. And there's absolutely no need to enable the electric power steering on a car that is in Park.  Please fix.  Thanks.