My nieces were round on Thursday, just noticed this morning that the freezer's turned off at the wall. DD couldn't have done it so that means it must have been off since Thursday afternoon. We opened it last night but didn't notice it was off. The ice-cream's semi-defrosted, some meat is still frozen solid, some is partially defrosted. If it's still unopened from the supermarket is it alright to refreeze it? Do I need to cook it all and then refreeze it?