Dogs Are Excited To Go To Petsmart

Our dogs realize where we're taking them as we turn the corner and I decide to get my camera out. Jack (Norwegian Elkhound mix) and Leroy (Labrador mix) are in the back of our Toyota FJ Cruiser in a wooden pen we made that is the exact shape of the FJ's cargo area. Roxy (Teddy Roosevelt Rat Terrier) is sitting in my lap.
Jack, like many northern breeds, lets out crazy whines and howls when he's really excited. That gets the other two going.
These dogs love going to Petsmart. I don't know if it's because they get to see other dogs or if it's the treats the cashier always gives them.