We were steady in the 50's-40-s for overnights till a few days ago.
Then we got snow all day! It was spotty on and off, and melted off by the next day, and now it's nice again.

Till that day, my luffa in it's sheltered zone 6 area was doing great! Now the vine withering is on. And I have over 2 dozen luffas on the vine that are still green and I don't know what to do with them.

They have all been pretty much the size they are for the last 4 weeks or so. Most of them still feel spongy/springy when you squeeze/thump them, a few are starting to feel more solid and have a more solid shell- none of them are starting to turn color or feel lighter yet.

I've seen advice...
Pick them all, and either see how it goes, let them dry out peeled or unpeeled with the skins pierced to encourage drying. Or leave them on the vine for as long as they are willing to hang- but bring them in anyway before serious freezing weather.

Weather forecast is predicting a serious chilly coming on, and I'd like to know what to do about these gourds before this happens.

Thanks for any advice!