I am not going to worry all that much about the weapons policy of a shelter if I am desperate enough to even consider going to one. The key word being desperate. I won't be in any shelter if there is an alternative. They are not places you go for the fun of it. You go because it is a bad choice, but better than the other choices available to you at the time. Sort of like having a gangrenous leg being amputated. A bad choice, but better than becoming a fatality.