Well, you may right about the ignoring part, but I think that it is possible they picked the funerals to picket because they were not getting any attention anywhere else.

I do not know what past legal action has been attempted to reduce thier access to locations close to the funerals and etc.

Perhaps a combination of lawsuits and legistlation will be needed to move thier protests to a location that will destroy the desire to protest at funerals.