I have to agree that showing signs of intelligence does not make the animal self aware.
When I was young I used to have gerbils. Not the smartest animals in the world but they did figure out different ways of escaping by manipulating the lid to escape; once they even figured out that by hanging upside down they could shake the lid enough to make it fall over.
There was even one time one of them showed the ability to reason. I had taught them to ring a bell hanging in the cage if they needed food. Once during the middle of the day I heard the bell ringing and was about to give them heck because it wasn't feeding time. To my horror I found one of them had broken his leg and was caught in the running wheel, and the other went and rang the bell to call me to help.
(for the animal lovers out there this does have a happy ending. The vet taught us to make splints for him and he did recover.)
Both of these are showing determination and a bit of intelligence, but neither is an example of being self aware.