Left for work and the Hab was fine. Now this.

[nzchili]

I had a very similar experience once..
 
I watered the plants with rain water that had collected in plant "saucers" (the trays that pots sit on) that were sitting outside.
Got home from work and the two plants I had watered with that water looked just like your plants.
pic below;

 
My take on it was that residual salts/ferts that had collected in the "saucers" (from multiple applications of ferts over time, then run-off collecting and drying up in the "saucer"), pulled all the water out of the plants via osmosis. basically severe over fertilisation.
I gave both plants an aggressive pruning. Pretty much topped them to the V and flushed out the pots with fresh water.
One plant survived, one died.
Just my experience.
cheers
 
edit; link to some reading about this phenomenon
https://internalandexternalenvironments2012.wikispaces.com/Hypertonic,+hypotonic+and+isotonic+effects+on+plants+and+animal+cells.
 
heres an image from link showing "hypertonic" plant cells. or plants where water has been pulled out of the plant via osmosis (i had to upload it to photobucket because the forum didnt let me link it)

another example;

 
from https://www.boundless.com/biology/textbooks/boundless-biology-textbook/structure-and-function-of-plasma-membranes-5/passive-transport-65/osmoregulation-335-11472/

 

[Bomparty]

I would say bacterial wilt. I had some trying to overwinter and every single plant I had did that and died. I found out recently that mine had bacterial wilt.
 
I'm a new grower so don't take my word for it. ps no matter what I hope they'll recover nicely.

 

[Fitsea]

Nike all. Hab is dead. I took some seeds from a grocery store-hab, though, and they are sprouting. Here's hoping I can grow one to over-winter size by season's end, then reap the reward next year.