You dog!! +1 for the jealous part.
Fabulous guitar!!! I've always wanted a D-35 or an HD-28, people will tell you that the regular D-28 is THE Martin....I disagree. The HD-28 is. I can't believe someone would send it to you with no cash exchange.
You're a double lucky dog!!
That looks like one of those nitro eating rubber bumpers on a guitar stand things to me. See if there's a matching one on the neck. It can probably be buffed out with a bit of rubbing compound then polished. Well worth the effort for such an excellent guitar....!!!
Congrats, I'm happy for you, dawg.