Seriously, I keep waiting for them to take the high ground and start getting stabby. I'm thinking a boar spear or even a six foot length of sharpened rebar while on the roof of a truck or that stupid RV and they could handle quite a horde.
I also got to thinking. . . what about finding a small island and killing every fucking zombie on it? Maybe one the sea islands off GA, grow some cotton, some root vegetables, and you're good to go.
You could make a assualt team and launch attacks from a boat. Maybe set up a barricade with your back to the sea, set of some noise makers and slay until your arms get tired or your barrier starts to get over run. Retreat to the sea. Rinse, wash, repeat.
My plan has always been to head to a beach house on the panhandle with a hurricane kit, the houses on stilts. Bring a shitload of ammo, cut off the stairs and sit on the balcony and shoot zombies through the head all day long. Or just reach down with a rigged-up spear and dispatch them that way. The hurricane kit will last you a week or so, then move along.