Back in the early 80's, I worked at SDC and from time to time played a "prisoner" at the Flooded Mine. I, too, long for the old days with the ride...but time marches on and things change. I don't know why the air conditioning was not working in the building when you rode. That seems like a temporary problem that would probably get fixed in a day or two. Regarding details of the scenes, don't know if they need maintenance in there to fix things up, or if they just changed things. If you have any deep complaints about the park, or questions about why things have changed, by all means go to the SDC official web site, where there is a place to offer suggestions and comments. They do listen, they do respond. They want you to have a good visit, and they want you to come back again.