Okay, fine, I can't resist...it might be tempting to take a big ole cruise ship out to the middle of San Francisco Bay and just park there, but has anyone considered that decaying bodies float? I'm not at all convinced that the whole zombies-can't-swim philosophy is something I'd stake my life on.
Not to mention that if someone in your party died of natural causes, you'd still be stuck with a zombie on the ship, and who knows if you'd be able to get to them in time. Especially on a really big ship with a lot of people, and a lot of hiding places.
				
 There's a big grouping of them over at imdb and some on youtube who are bitching about Rick being a murderer, that female fans will desert the show without "hunk" Shane, that TWD would be more interesting with Shane instead of Rick as the lead because Shane got things done....yada yada yada. It's appropos of nothing, but I thought it was funny. Some think both of the characters should still be on the show. 

  I am growing fond of Hershel, though. I'm glad he survived.