I don't think you've made an ass out of yourself. You were motivated and learned from this experience. All of us learn from experiences but we wouldn't learn if we didn't take the initial risk. If every GC username posted a diary of our life's mistakes, you would find some interesting and humbling things perhaps even as recent as this evening.
Don't be so hard on yourself.
Lessons learned. Plus, that company may have read your 3+ pages of awesome.
Or, you said enough in page 1 to warrant a call back. Good luck!
