Perhaps the city will appeal, I dunno, but in the meanwhile I suggest that Seattle City Council members pursue a more creative solution: Ban delivery of phonebooks in PLASTIC BAGS!
Sure, that won't stop delivery to apartment building vestibules and covered porches, but in much of residential Seattle it would make phonebook delivery impractical for nine, ten months of the year. For if there's anything more pointless in the Internet age than a phonebook, it's a soggy phonebook. Plus, the courts have already upheld municipal plastic bag bans.
Fuck you, Yellow Pages!
As for me, I intend to post signs on my property: "No Trespassing: Phonebook Deliverers Will Be Shot!"