^That's good. But if she's still driving even a little, you might want to make a point of being a passenger in her car occasionally, just to monitor how she's doing.
When I went to visit my father once (he was still living on his own in another state), the ride to his house from the airport was terrifying. He had always been a very careful driver, but suddenly he was making risky left turns, going through red lights, and making light of it when I said something. His judgment was shot to hell, just since last time I'd seen him. I took the car keys away that day.