Overall, it's a fun premise, and it looks like something I would enjoy reading more of. That said, I would suggest abandoning the direct references to Douglas Adams' work. The story in and of itself has enough of the same kind of feel as <i>Hitchiker’s</i> without being so overtly referenced as to make it feel more like fan-fic than an original work.

To be honest, I'm not quite a fan of some of the names. Potato? Really? (Personal preference, mind you, but possibly consider each of your character's names carefully.) Also, I have no compunction regarding strong/offensive language, but there are other words beyond the F-word. If that's how a character talks and it's an integral part of their persona, then it can't be helped, but for every character to spew forth only the one obscenity means you likely need to rethink some of your characters, as I'm sure they aren't intended to be carbon copies of each other. Also, avoid profanity in the narrative. I don't recall any cases of that off-hand, but it is definitely something to try to avoid.

It does seem to be in the early stages of development, so it does seem like it needs a bit more polish. I think you have the potential for a five-star idea, but it just needs some fleshing out and refinement to get it the rest of the way there.