Well I'm not too much of a dog expert, but maybe you would consider just using a playpen for them? It sounds like they don't really know what to do with all the freedom, so they just throw a party (like teenagers when their parents are away
) You could put the playpen on a hard surface so that they don't scratch the carpet.. Another idea might be to only give them a small area to play in, then gradually make the area bigger once they don't rip up anything in that area. If all else fails though, you could just ask a friend or family member to watch them while you're gone.
Hope I could be of some help!