The song lyric quoted by the security guard is from the song "Deal" by the Grateful dead from their album "Dead Set". The lyrics quoted by Diane in court the next day are from the same song. But the album she had listened to the night before and wrote lyrics down from was "American Beauty" (the song was "Ripple"). She stated it was for work, and as a busy lawyer who hasn't an interest in the Grateful Dead, she would hardly have bothered to listen to a variety of songs to get lyrics to a song that suited her purpose when she had quite obviously been told those lyrics and been able to type in "lyrics" + the lyrics in Google to obtain the entire text of the song.