I suppose I might even agree that it might be a legitimate function of BATFE to secure weapons during a time of emergency like this one. (If they do in fact have a legitimate function.) I am assuming of course that they documented all of the guns they took, hopefully photographed the process, and they are cooperating with the owner and his insurance to have the guns returned or destroyed as unserviceable?
Sure, there are very real problems to solve there right now, like food, water, shelter and survivors, but at the same time, it can also be said that someone should make sure that there aren't guns lying in the open for looters to grab. It may well be beyond the ability of the store owner to secure them all.