(which, to my shame, I haven't done in over a year) and I saw this guy pushing a bike up that big hill (coming around the northwest corner of the park). First I thought it was a moped. Then I realized what it really was: a old sparkly-blue bananna-seat Schwinn with a jury rigged pimped-out moped tire on the back wheel!
It was being pushed up hill by a young black man with a big blow-out. "Nice bike!" I said with enthusiasm. He smiled broadly. It was nice bike, leaving aside the fact he couldn't ride it uphill.
No, I don't have a picture.