DonDakin, thank you for the writeup. I would find that situation disconcerting, especially if I were in a hurry. At least it makes us aware of the possible key-turning problem/solution as one of the things to look for. At least it doesn't appear to be the 12v battery.
FWIW, I charge my car either having a 'live' or 'dead' pistol when I plug in, and it doesn't seem to make any difference.
EVs: 2 Wht/Blu SE Prem., '13 Tesla MS85, 3 156v CorbinSparrows (2 Li-ion), 24v EcoScoot(LiFePO4)
EV Conv: 156v '86 Ram PU, 144v '65 Saab 96
Hybrids: 48v1kW bike
ICE: '88 Isuzu Trooper. Mothballed: '67 Saab (orig.owner), '76 MBZ L206D RHD RV