IF you have access to a BIG size commercial washer/dryer nearby I'd separate by colors, knowing new fabrics will likely run and wash loads (big loads) with vinegar and laundry soap. Guess I'd call and check with an Extension Office to see if they have any further recommendations tomorrow...but today I'd be at the commercial laundry with the huge "comforter" size washers and start washing and drying asap...before destroyed forever. If you were closer I'd offer to take a load, etc. IF bunch of us online are nearby you might get us to all take a load today to get it finished asap.