If this takes hold, globally the repercussions will be significant, if Saudi closes the road border into Qatar, then everything unravels quite quickly, food, fuel, and the rest of the world will jitter..I think H.E. Akbar will be using a large amount of mobile phone airtime today..
On the positive side if I was the ruling family / govt in Doha I'd also be on the phone and doing whatever was needed to restore normal!
Think I might pack an extra pair of boxers for these next few trips, this could be fluid and chaotic in the coming days and weeks.