Do you reball your dough after taking out of the fridge? I proof my dough in the fridge for 4-8 days in Gladware bowls. Then, remove from fridge for 1 hour at room temp, remove dough and reball and spray cooking spray in the bottom of the bowl before putting ball back in for a 2-4 hour room temp rest. To use, I just turn the bowl upside down and set it on a floured surface and the dough comes out by itself in just a few seconds. I would imagine it would be very similar with the aluminum pans.
Just for giggles, one time I tried inverting my bowl of doughs without reballing. It took a minute or two, but eventually the dough released and came out. For this method, more patience is definitely required, but I found I could just invert all my bowls up front and then the dough was already out on its own as I would get to each bowl.