You don't need days to get a film to ambient temperatures, come on.
I usually wait 30 min to 1 hour after I take the film out of the freezer, in it's original packaging the film has enough protection from condensation.
And to the guy asking if he should loose the 35mm cardboard; why take it off? It makes it easier to see the film type, it's stamped with the expiration date, it protects the canister inside a little from opening AND the film is easier to stack when the cardboard is intact.
I keep all my films in tupperware boxes and ice-cream boxes, to prevent them from accumulating ice, labeled and sorted and ready to go.