I think anytime a person feels impaired - by any means- booze, rx drugs or illegal drugs- even severe migraines or flu - they should not drive.
I'm not sure why you argued with atty about it, your treating dr would be the one to make that call if needed.
![Confused](images/smilies/confused.gif)
Did you want it written down or documented that you cannot drive?
Wouldn't you rather have the option open to drive if you needed too?