I received an email this morning from the Matt Pond PA mailing list letting me know they covered "Holiday Road." The song was posted (in streaming form) on their Myspace.com profile. I recorded a quick MP3 of the stream so you can share it with your granny.
UPDATE: In my valiant efforts to get the song to you, dear readers, I inadvertently forgot to tell you that this is a cover of Lindsy Buckingham’s song made famous by National Lampoon’s Vacation. [Thanks for the nudge, Honkybitch]