I discovered that I love raw fish. I'm planning to buy a sushi-grade fish to make myself a sashimi or poke but I wonder if there is method of bringing it for lunch to work after preparing it day before.  Is it possible to store a prepared raw fish (poke/sushi) in fridge/freezer overnight or is this a safety hazard and it needs to be eaten soon after preparation which includes thawing.   EDIT I mean fridge at home then at work. I live 5-10 minutes from work so if isolated it should not change temperature significantly, I think. 
The standard processing for this type of "flexible can" or "retort pouch" packaging is a certain amount of time at 250F or so to completely sterilize the contents. There's nothing alive in there to cause spoilage, or the process would not work at all.  As such, I find the comment stream remarkably uninformed - will 130F damage the package? If so, it would never have made it out of the factory...and the widespread precursor to the civilian application of this package (as mentioned in a more informed comment) is the MRE, and you can bet those go through some roasty-toasty temperatures in desert war zones.   If the packages are sealed, they are still sterile. Nothing that happened in your car is anywhere near the temperatures that were used to sterilize the contents in the first place. 