Some say you can go into a humid bathroom (turn hot shower on til mirrors fog - make it warm and steamy) and that helps if you have to open/shut the incubator door quickly. I couldn't take it - had a crazy chick, he was dry and running about, took him out and into the brooder. .2 second it took to pick him up didn't change the humidity setting on my hydrometer. No others had pipped so no problem with shrink wrapping, if chicks shrink wrap with a .2 second door opening, something beyond wrong to begin with anyway. Have two others hatching this AM, no problems yet.
Also, would add I have a reptipro (fridge type forced air) - so I can crack the door for my hand (a few inches), different story with those foam type incubators where one would have to take the entire top off and let humidity out completely.
Good luck!