well as for food I wouldn't worry,its not uncommon for them to go awhile without food, however the heat and water or lack of is the part to worry about.....hopefully it will be ok and you'll just have tomake sure it has some water and warmth..I wouldn't try to feed it right away I'd give it water and heat for a day or two then try to feed it...a mouse nothing to big off the bat, see how it handles that and then you can go from there......hope this helps and if anyone else can add to it that be great.......good luck