We eventually parted ways; they split while I was chatting about diving with a Brit on a rooftop bar. I made my way back to my street, and found a restaurant. No idea what I ate, but it was pho-like and delicious. A guy at the next micro-table saw me and chatted me up. He's Vietnamese, but grew up in Philly. He ordered, and paid for my dinner. I didn't realize that, until I tried to pay after he'd left. I know prices are cheap, but still that was such a kind gesture.
Thus endeth Day 1.