Nice in theory, but in my experience cops want immediate compliance, not backtalk.
Me: Exit the vehicle slowly with your hands emtpy and visible.
You: I can’t do that because I am partially paralyzed.
At this point I move up closer and tell you to again exit the vehicle, get on your knees with your “good arm” up. I would move up on you and immediately take hold of your paralyzed arm in order to ascertain that you are in fact unarmed.
There are exceptions to almost everything in life.