You would get out in time but the problem would be finding a decent spot. Your best bet would be to head over into the Liberty Square/Frontierland area (go through Fantasyland, they sometimes block the Liberty Square bridge when it gets crowded, we found this out in May). The area in front of the castle is usually mobbed 1 hour before. Do you have kids? If you are just adults, you could probably find a standing spot with no problem. With kids, I would make your PS earlier if you can.