I recently contacted them as well, plus one of my friends has, all with no response.

I would recommend contacting the lead author of the paper, Ahmed Kosba. I emailed him about Hawk several months ago; he's the one who told me they were hoping to release at least part of the source by the end of last semester (so far, they haven't). I bet he will respond if you email him; let me know how it goes if you do.

~ Bolt