Here is a link to the chords and words. I'm a longtime Lightfoot fan and he is the reason I play the guitar. In my opinion, the Wreck just isn't right without that unresolved Asus2 chord. And for what it's worth, the guy that wrote it is still playing it every night with that chord. Also note the A11 chord in the "interludes" between the verses.
Also, as someone above mentioned, a capo on the second fret is how it was recorded and is still done by Gord and the band. So it's actually in some mode of the key of B; but more minor than major it seems to me.....
Just my 2 cents....