So, I am a total fool and it didn't occur to me how golden an opportunity the big boom would have been for Tony. Then it slapped me in the face.
I have talked to the mods and they've okayed a bit of a retcon for Tony. So he was there, got some shrapnel in the chest and now he's sporting a shiny arc reactor in his chest. He spent some time in the hospital and now he's back in the dorm on bed rest.