I'm with the commentors (sp?) saying to let the family have their funeral in peace. I don't like WBC either...hell, I once got my picture in the paper arguing with them at a counterprotest...but I think staging a protest, while possibly justified, would only fuel their martyrdom complex and make them double down on their stance. Better to let them fade into obscurity.
"An eye for an eye leaves the whole world blind."- Mahatma Gandhi