Got an answer back. Turns out that as long as I say I have a BS degree, they don't need proof. Odd kind of bureaucracy. I was also advised that I would have to wait an additional two days before signing up for Fall classes on July 14. Either way I would have been on my vacation.
As I'll explain in more detail in a later post, I'm not going to take quite as many math classes at this community college. I have decided that I want to focus on the brain/mind overall, as well as how to model it. My PhD Aspirations page has been updated to show PhD programs that are out of the running (for now). I won't need Calculus 3 or Differential Equations. I might even just take Trigonometry, Statistics, and Calculus I. Maybe more if I find I enjoy getting back into math. I need to think about this more.