That's good, If they've perked back up then maybe you dodged a bullet, hard to say.
So you’re confident no further ripening will take place? I get there done with growth. What’s my harvest window? Can I do it over next 3-4 days?
No, I'm not confident of anything without being there. What ends up happening to me when plants get too frosted is; 1) they wilt and may perk back up a little bit but never fully recover. 2) when I grab a branch the outer green layer of the stem peels right away from the inner core.
It's like it freezes between the fibrous core and the outer cambium layer, and when you apply any kind of pressure the outer layer wants to separate. After that point the vascular system of the plant is pretty much screwed in my experience, I've tried leaving them for a week or two to see if they can heal and recover but it has never worked for me.
But, when/if that happens you still have time to harvest over multiple days, they act more like a flower when you cut it and put it in a vase, they don't die right away and you can still work with them, but they aren't going to fully recover and start growing again. I've never noticed them getting more mature after that point, once the vascular system gets that damaged they just slowly get less vibrant and get more floppy over time, like a flower in a vase.
Just watch them and see if they continue to get better for a few days, and check the smell. If they become more limp over time and start to smell like hay or lawn grass then start chopping, because it's not going to get better. That's been my experience, hopefully others will chime in.
Good luck(not being sarcastic).