YOur title just made me smile -- been there and done that. I know exactly what you are feeling. TGIF !!!

Never ever go back in - then they will always cry and see if it brings you or if they can get up early.

I would leave them because the sooner they learn the nap times the better for everyone.

I sometimes will go get the brood 30 minutes earlier or so but never would I not try to stick out at least an hour.

Good luck and I hope your afternoon gets better