We were at Trattoria the same morning you were, but our reservation wasn't until 9:25. I was sitting in the waiting area when Ariel was announced - I actually saw her come out from backstage in the Abracadabar and she motioned for me to not tell everyone as she stepped behind a curtain. I agree that these were the easiest face character interactions ever, and they spent a LOT of time answering questions from our 3 pre-teen girls! We also got to see the crown, and those pancakes were fantastic.
And while you were sweating in Animal Kingdom, we were in Epcot slowly melting at the Frozen fireworks party. It was definitely the hottest afternoon and night we experienced during our stay.