James, I feel your pain. I too, had come to a limit with these uninvited, rain sogged intrusions onto my property. We have one in our area called the HomeTowner. It’s nothing but a bunch of advertisements, with a few classifieds stuffed into a plastic bag, only to get tossed into the trash, thus adding to the overflow of our landfills, or and ending up in the bushes, to be found during fall clean up, and again adding to the overflow of our landfills. I contacted them by certified mail to cease and decist with their unwanted intrusion onto my property by their delivery personnel. I like John, theatened to bring legal action against the publication. Guess what? I haven’t received that disgustingly annoying publication in several years. Evidently, they took my threats seriously. I haven’t heard hide nor hair of them since. Happy day! No more annoying HomeTowner!! A certified letter stating the cell phone disaster and a threat to hold them civilly responsible for any further property damage of worse yet, personnal injury, that you could possibly encounter in the future, should get the job done. It worked for me.
If that doesn’t work, perhaps you have an attorney friend who wants to get a good laugh and could send a letter on their letterhead with some legaleze type stuff that most of these simple minded people won’t probably understand, and they’ll quit immediately. The people that publish this kind of stuff aren’t exactly “rocket scientists”. You’ll scare ’em off.
Gramps
laughed out loud there. Don’t forget about the coat hanger antennae… 
