Hey Jason, sorry to hear about what happened to your friend. I know you said it's starting to sink in that no matter what you did, he probably wasn't going to make it and you're right. I am a doctor, and I've seen it too many times. unless you are IN the hospital while you're having a heart attack your chances are slim... and even then they're not very good. Even the extra half hour would most likely not have made a difference in his outcome. Again, I'm sorry you had to go through this (and for his family as well).
On a side note, I ended up getting the same bike from a guy in San Diego.