I was there Sunday as well and I had less than a good time. The lines for the rides were too long, people were extremely rude, line jumping was annoying, kids swearing and spitting all over the place, it was not what I would call fun. I thought it was a wasted afternoon/evening. We hit the safari around 12 noon and then got in the theme park around 2pm and left around 8pm.
On a positive note, the Safari was great and I didn't have to waste money on anything with the Season Pass and Parking.