The City Museum... fun or disaster?

We took Al over to the City Museum last night and he had a blast! It is an indoor/outdoor playground for kids and adults made all of recycled materials. He went down the 2 story slides with dad and dove into the balls in the toddler area all by himself. I was having nightmares of the older kids crushing him while he suffocated under all those balls (terrible, I know). He didnt seem to mind when he sunk all the way to the bottom though.
Anyway, while attempting to leave the fit began. This was the longest, most obsurd temper tantrum I have ever seen him throw; I mean it lasted for 45 minutes. The entire walk home, he would try to turn and make a break for it back to the museum. The fit contiued through his bath and into his dinner, which he refused to eat. So ridiculous. I wish I had a video.
However, I feel so bad bc we found out a couple days ago he has a double ear infection. (you would never know though, he is acting fine) And then this morning he woke up in a bed of throw up and then threw up 2 more times as the morning progressed. I felt bad for him, but I felt really sorry for myself as I had to clean it all up gagging the entire time :). I don know what is up though, bc he still acts fine, like nothing is wrong. I dont know... I guess if he does it again I will call the dr in the morning. hmm.