Okay. Thank you for the encouragement, as there is no way on earth these guys could have made it out.
First of all, I wet a towel with hot water and draped it over half of the bator. I could reach under the towel and look through the top window to see what I was doing. The humidity actually went UP! I need to remember that trick for emergencies.
Although the humidity was plenty high during lockdown, if they are zipped for that long, that membrane just dries out. I got to experience a truly "sticky chick". This poor guy was so stuck, I had to pull him out of the bator, wrap him in a warm towel, and work on getting him unglued. It was pitiful. He's back in the bator warming up, but I think there was probably a reason that he couldn't get out quickly. His feet just look a little shrivly to me. I don't know if he is developmentally normal or not... we shall see.
I left the other one in the bator but just barely lifted the lid (under the hot towel trick) and helped get the top off of him. That membrane was tough... there is no way he could have made it, either. He is perfectly fine, but still stuck in the bottom half of the egg. I will just wait and see if he can get out on his own, but I suspect he's stuck to the membrane there, too. I don't want to mess around in there too long, so if he's not out by this evening I will try again.
One may not make it, but he wouldn't have any way. Humidity went UP instead of down, and the help was definitely required. I'm feeling pretty good.
Thank you again for all of your advice! I have heard "Don't help!" so much that I was just going with it... but my heart said it was just wrong after zipping!