It doesn't take a long exposition to such a high SPL to get a severe hearing loss. Did you wear ear plugs while you were there?
Last week, I went to watch a streamed transmission from a live Met Opera production, Wagner's Tristan und Isolde, at a local Cineplex theatre. It was an amazing performance featuring Lise Davidsen, a Norwegian soprano having a height of 6 ft 1 in.
I now have a moderate to severe deafness that isn't due to hearing high noise or music SPLs. But, last Saturday, for the beginning of the performance, I was wearing a hearing aid on my left ear. At some climaxes, the music was often too loud to my ears and I removed the hearing aid, and the SPL was just right for my ears.