I think there was some confusion in the post, you can not go through the exit to see the penguin exhibit. I think a previous poster was mentioning that the penguins are located at the exit of the ride and not necessarily using the exit to see the penguins.
There is a way to view the Penguins without riding the ride, however, you still have to wait in the ride line. When you get to the front of the line, tell the employee about your situation. You should be directed to a separate room where you are loaded in and wait for a minute or two before seeing the penguins. You could even tell the employee standing at the entrance to the ride line and he or she might allow you to skip the line and take you right to where the room is to wait to see the penguins. But make sure you're asking each employee you see so you don't end up accidentally getting loaded onto the ride or put in the wrong waiting room.