Yes,
Before my surgery I had been stopped at least three times for marked lanes or unsteady driving coming home from work. This was before I had even been officially diagnosed so even though I knew there was something wrong with me, I couldn't say I had a brain tumor.
The first time the cops called me outside and to the rear of my van and asked me if I'd been drinking to which I resoundingly and truthfully replied, "No, I don't drink!!!" They were confused and a bit crestfallen because they thought for sure they had an DWI on their hands.
The second and third times I was given "warnings" just to make it look good for their records.This was in a town where the cops act like carrion buzzards perched on a wire and anxiously wait to swoop down on their quarry, simply for lack of anything else to do. If I were to have told those guys that I had a medical problem I probably would have been busted nonetheless and forbidden to drive. Don't give those sadistic morons the benefit of holding anything against you if you can help it. Why? because all they really care about is earing brownie points
and leveraging themselves at your expense.
Paul