Based on what I observed, the treat can be anything the dog likes. Maybe if you don't feed your dog that morning you can just give her normal kibble, or talk to the trainer or your vet.
I should add that the trainer did break up the treats into very small portions. It doesn't take much, it just has to be tasty. That said, it still adds up over an hour.
Also, you can go in someone else's car. Ruger is fine, but my girlfriend's car took the hit. LOL
