I usually don't wait to process, but the fridge or freezer seems wise to me.

Just for complete peace of mind, I'd unfreeze it the same way I unfreeze unexposed film: move it from the freezer to the fridge for a few hours, then to the next coolest place, and so on, ending up at room temperature. If you go directly from the freezer to room temperature, then you can expect condensation.

Condensation may not be any worry though if you plan on developing; just some extra moisture.