Protesting at Millitary Funerals?

Many of you have probably seen video clips online or on television of Shirley Phelps-Roper such as this video at http://www.youtube.com/watch?v=-in16plR9Jk . She is an attorney and a member of the Westboro Baptist Church in Kansas, which has recently become famous for its protests of millitary funerals. The members of the congregation have actually picketed at funerals, holding signs reading, "Thank God for 9/11" and "God Hates Fags". Shirley has appeared on numerous news shows, trying to justify the horrible acts of her congregation, and even told Tyra Banks on her talk show, "Tyra", that she is a "fag-enabler". Her claim is that anytime one's child dies at a young age, such as the young men and women killed at war, it is "God's furious wrath" that took their lives away and that they deserved to die. Free speech is one thing, but picketing at funerals is another matter altogether. The content and interpretation of the bible are not so much important here as the rights of those poor families who have to tolerate the evil behaviors of the Westboro Baptist Church when they only wish to bury a loved one in peace.
Do you think the picketing of Shirley Phelps-Roper and her followers could actually lead to changes in American laws, as they wish? What kind of punishment could be enflicted upon the protesters when they, after all, are "simply expressing their freedom of religion and speech"? I encourage you to watch some of Shirley's interviews on Youtube.com and tell me what you think.