Cell Phone Distraction

Everyone these days is aware of cell phone distraction.  Few take it seriously.   Recently, while driving on a nearby highway, I continued to hear short bursts of a buzzing noise coming from behind me in traffic.  I looked in my rear view mirror once or twice, not sure who, what, where.  Suddenly, in my passenger side mirror, I see a car drift off the roadway, onto the grooved noise generators.  Sure enough, the driver was trying to text and drive.  I guess hitting a concrete barrier or another car would have been the "wake up" call for that driver.