Forced early harvest. Need help on what to do next

Hello. So my 3 girls from this years crop were filling in with bud and sugar leafs very nicely. Sadly this week I will be away with nobody to take care of them. They were outdoor grow, and I was planning on doing a mid-October harvest. Problem, the temperature has taken a turn for the worse as it has been dropping to 0-3 degrees Celsius at night, and only around 10 degrees in the day with constant rain and wind. They did not have much protection against the elements and I did not want to leave them outside regardless due to the fear they would be stolen while Im away, like my friends' were. I harvested two of them and they are hanging to dry but I had a thought before harvesting the third. Is it possible to completely deprive the last plant of light so it will use all the rest of its energy (likely killing the fan leafs and such) to promote bud growth as sort of , last resort to make more bud. In the picture you can see there isn't much of it, mostly just sugar leafs and budlets.
Thank you!

It will not continue to grow without light, you could always put it back under light if it has just been in the dark and should be fine. Not the best pic but it looks like it has a few weeks to finish.