I would just wait until your next feed day.

If She doesn't desperately need food in her I wouldn't give up on F/T yet. There are numerous things that can make a BP not eat. And being in a new home (even if everything is correct) is one of them.

You can refereeze a mouse once... But after that it is done. Even still use good judgment. Better safe than sorry.

How big was the mouse? How hot did you make it? (the body temperature of a rat is 100 degrees so that should be your goal, just donk cook it)