I might be realy wrong but is there anyway of removing the shell off the air cell so you can see bet not hurt them if they are still alive or would it dry them out ?
I'd take one out, place it on a warm, damp rag and pip the aircell. Just see if there is any movement or breathing. I'm not one likely to let a hatch drag on to Day 23, as you can tell, LOL. Only do it if you feel comfortable. At least you'll know before Monday night.