While I was at work telling people about my cameras downfall, my girlfriend tried one last shot at a camera store just to see if there was something we could do.
It turns out it's either the camera's battery or my charger that has stopped working, because a new battery was all it took for my trusty old Nikon to work again. This makes me super happy and ready for a few more months before I upgrade to a newer camera.
On another note, I think I'm starting to figure out how to do the vlogging setup for the San Francisco trip. I already have a smaller camera, and a GoPro and will try to use as little money as possible to make this setup vlog worthy (small microphone, extra batteries, memory cards and external storage).