You can prime and carb them outside the fridge, fo sho...but I would think bottling at that point would be tough. You could always hook them up to some gas later and serve after carbed. I do this as often as possible actually rather than force carbing.
Primary: Sour Brown, RIP Stout
Kegged: Pumpkin Stout
Future Brews: a gluten-free beer for my mother-in-law, barleywine