Was that really Robin Williams at a Minnesota Dairy Queen?  Apparently so...

Robin Williams' reps say he didn't fall off the wagon but rather want's to "maintain his sobriety".  He's checked into Hazelden in Center City, Minnesota "taking the opportunity to fine-tune and focus on his continued commitment, of which he remains extremely proud".

The 62-year old planned the visit to recharge after 18 straight months of work.  In addition to his recently-cancelled sitcom "The Crazy Ones", Robin did a movie called "The Angriest Man In Brooklyn" with Mila Kunis, and has the third "Night In The Museum" movie hitting the big screens in December.

Robin has been battling addiction for years.  He was last in treatment back in 2006.

(Getty Images)