Hair Color Problem (Redken’s Camo)

I kept seeing the full page ads for Color Camo by Redken for men to add more pepper to their salt and pepper hair. That's all I wanted when I went to the salon.  The colorist had used the product before.  What I got was a dark brown dye job, not the natural look that was pictured in the magazine.  Did the colorist use the wrong shade for me?  She left the mixture in my hair for approx. 10 minutes which she decided later was too long!

I am very upset with the outcome and she knows it.  I wish I had left my salt and pepper hair the way it was.  This is so embarrassing to me.  Any advice out there?