I think it's unlikely to only work when key is in range. That would require way too many components to work, and is probably inappropriate for a fail safe mechanism.I'm wondering about the backup "jumper cable" port on the front bumper. Does this mean someone with a 12v booster pack can go around popping peoples' frunks open? Or is this (hopefully) only possible with a key fob also within range? I'm hoping for the latter.
I expect that this would only work when the 12V is dead?
Tesla also provides emergency mechanism to open frunk in all models. I just Googled about it, so take my words with a grain of sort. In S/X, any one can open it without key. In 3, the mechanism only works when 12V is dead.