dream fragment

This was a week or two ago. Very small fragment, but figured I would put it up anyhow:

Aprrox. few weeks ago - I was in a Kroger Parking lot (where I work) and saw a black Explorer drive by. I look inside and see one of my ex girlfriends sitting in the backseat, with nobody else in the car. The odd thing here is that the car is driving with nobody at the wheel, while she is alone, buckled up, in the back seat. I casually say hello and start a conversation with her, while walking with the SUV. I then get into the drivers seat and push down the brake to stop the car. We continue to hold a normal conversation and the dream ends.

NOTE- I tend to have a LOT ( I mean a LOTTTT) of dreams where a car is driving itself and I have to brake it, or If I'm driving the brakes won't work correctly. I read something on this site about technology failing a lot in dreams due to our lack of understanding it, but most other machines/electronics work okay in my dreams. Brakes almost NEVER do. Maybe I could use this as a dream sign?