"To Chris Haar.. oh but you can see in or around Minneapolis.  The second state in the nation was Minn. in 2008 at St. Cloud.   and another is operating is Owatanna.   Scott county is using one and adding a second. And they are learning to clear two lanes wide to speeds of up to 50 MPH... so don't not pass because because when you pass and drive on snow in front.. you may have to see it in your mirror."