Very Late Quail - Peeping, No Pipping

[tothefifth powe]

Hello.
I'm hatching button quails. Around 9 hatched 3-4 days ago but I decided to let the rest of the eggs who didn't make it rest in the incubator.
I check today - day 20 (theyre supposed to hatch day 16) - and I hear one of the eggs peeping. I check back 4 hours later, and the chick is still peeping but there's no pip. I read a form that suggested I break off the shell (and not the membrane) at around the location where his beak is (i located this from candling). I misread the instructions and "zipped" just the egg shell (not the membrane) aroudn half way. Furthermore, I punctured the membrane in the man-made pip which might be good because there was no bleeding and now a clear airway for the quail.
I can see the quail's beak desperately poking the membrane, but unable to tear through it. I belive the membrane dried out (white and rubbery) when I tried to puncture the egg.
I revisit the egg and water its membrane every 10 minutes, yet every time I come back, the membrane looks extremely dry. I am trying to up the humidity in the incubator by adding hot paper towels on the sides.
Should I intervene any longer or wait until tomorrow morning (5 hours)?

 

[Hybridchucks]

@JaeG

 

[JaeG]

Can you see any veins in the membrane that still look bloody? Oil (such as coconut or olive oil) is better to use than water on the membrane, but at this stage the membrane is possibly starting to restrict the little ones breathing. I'd peel back a bit more of the shell and if you can't see blood I'd get some little nail scissors, or a needle to make a cut in the membrane so you can peel it back. If you hit blood, stop and apply a bit of pressure.

Keep talking to the chick as they like to know someone is there, though I had one I had to help recently that never made a peep. I was debating with myself whether I helped or not but where I'd peeled the shell back the membrane was starting to squeeze despite being oiled down, so I thought I'd give him a chance. The chick is perfectly fine despite needing about 36 hours to be ready to hatch and being unusually quiet.