How could these people be so disgusting? Do they have a phone number. I feel like getting sued by them.
This is one time a drone would come in handy.
As to the second question, start here: http://www.yelp.com/biz/westboro-baptist-church-topeka
As to the first...do you really want to know? Honest question; I can explain their organization, theology, and attitude to you, but it would probably be a long-ish post.