Bullshitting a story is a different skill (and serves a different purpose) than writing a screenplay though, and spec scripts (especially from first-time writers) end up getting used, statistically speaking, roughly never. (And I’m sure there are about a bajillion more Hollywood-friendly versions of this basic narrative already out there in script form.)
Which is to say: if he’d turned it into a screenplay, he’d have gotten nothing from it, not even any attention (which was always the whole point).