Near the end of October, I figured out the chords for "Time to Get Alone." The song is in D major, but the bridge seems to be in an entirely different key. I think the chords there are:
|: C major | G minor | C major | F major :|
|: A minor | D minor :|
Tonally, this departure from D major illustrates the distance that's also referred to in the lyrics ("Aren't you glad we finally got away?").
While writing posts about the songs on 15 Big Ones and Love You, I listened to the albums again and found a couple more things to note.
"Had to Phone Ya" doesn't really have an end; it just fades out. The listener is left waiting for a musical resolution in the same way that the narrator is waiting for his call to be accepted ("Come on and answer the phone").