I've had the same thing happen, with my AC going out and coming home to 130F temps and finding dead animals. I was lucky in that it was "just" the snake room and I only lost half a dozen animals.
Sadly I'll have to mention, if any of the surviving females breeds/was bred, you may not get viable eggs, since some of my females that survived had eggs but the babies all died in egg.
But the good news is most of mine that showed the neuro symptoms did recover and act fine after some time, so I'm hoping that anything you have left will also be okay given a bit of time.
If I can help, please let me know. Over several issues I've had, I have little to offer in the way of snakes, unfortunately. But support otherwise I can do.