No, not you Laurie, the pet store. Isn't there someone who can step in and stop them from being destroyed?
Did you read the FAQ I linked to? No, they won't eat their babies. They may tear them into little bitty pieces and fling them around the cage, but they don't usually snack on them. Sometimes if a delivery is difficult, and they can't get them out, they end up pulling them apart piece by piece until they have them removed.
If you plan to keep them, be SURE you are able to accurately tell the sex of the kits, or you're going to end up having a mess again. You can keep girls with girls and boys with boys, but they must be separated no longer than 8 weeks from the day of birth or pregnancy can and will occur again.