Unfortunately that isn't going to be the case forever. Aftermarket tech providers are offering a multitude of digital monitors that you can install into the dashboard of your car. One web site actually gave directions on how to mount your iPad to your car, presumably for hands-free distraction.
Just like texting in cars, this is going to cause many accidents. There will always be people that choose to do things at inappropriate and sometimes dangerous times. And as more people do, it will cause more accidents, and there will eventually be a backlash by the public.
So my prediction is that we will start seeing more dashboard televisions in cars, rather than just the digital status display in many cars today. And then their use will get out of hand, including streaming video from internet services while driving. And finally there will be laws against their use in some states, and they will only be available through aftermarket sellers again.
Will that save us from distracted drivers? No, but it will certainly cut the number of drivers who hit you while watching their favorite television shows.