Can green lemons,some with yellow patches be safe to cut right now?

Question

Our lemons are mostly green, & we’er expecting 28 deg temp tonight, sorry no images,I’m disable now& home bound.

Answer 1

You can remove the fruit, but they may not ripen off the tree and be usable if they are too immature.

Can you protect the entire tree with a covering? If not the foliage may get frost damage and set it back.