She didn't go limp, she actually seized up a bit. I had her in my hand when she did it.
So far I've been watching her and she is just munching on food and drinking like she normally does. Very odd. She is an indoor/outdoor hen so I brought her and her buddy inside for today so I can keep watch.
Poop is very normal!
She and her 3 other siblings have not started laying yet, but they all started "squatting" for me when I pet them as of 2 days ago. It may just be a submissive thing but could be hormones as well.