A-Ha! I thought PNY had somehow managed to lock the BIOS on my GTX-970 or maybe that was their hope? Anyhow this altered version of GPU-Z allowed me to save the BIOS.
UPdate EDIT: I've used this Test Build to try to upload my BIOS for PNY GTX 970 but it reports that "This BIOS is already in our database. Get lost loser!" Ok, I added the "get lost loser" myself. Thing is, when I look for GTX 970 BIOS, there are 8 listed and none for the PNY card. Maybe it's still under review or something.