The only way to stop my mom from driving is to disable to the car. What's the best way to do this? My inclination is put a club wheel lock on it. I really don't want to mess around with the battery connections. The problem with the club is she will see it right off, which set up an immediate nuclear war. But she's in her 90s, just took a tumble down the stairs, is leaving rehab soon after recovering from multiple fractures, and seems more forgetful now. I have to act. How have you dealt with this?