Rain, Leak, Dicor but... what happening in walls?

For now, I would not be overly concerned. You dried it as best you could, and hopefully, the water found a direct path and made its own little "stream" without saturating everything in its path. Without disassembly, there is no way to know, and also without disassembly, there is little you can do to dry it out any further. Of course, you could take it to the Arizona desert- good excuse for a road trip!