Suggestions near 9th and Harrison
Flying in on business Wed. night. Staying near 9th and Harrison. Probably not getting to resto until 9PM (midnight in our bellies). Where's a walking distance, not too noisy, not too $$$ place. Our business meetings next day are in Chinatown, so I bet we get a Chinese lunch.
You may also want to consider eating at the airport, especially if you're flying into Terminal 2 (Virgin America or American) or the international terminal (food court is outside security and not far from the BART stop) and are hungry. T2 is brand new and has sushi, vegetarian, a Cat Cora restaurant, etc. There are lot of good options that will be open at 8.
Bar Agricole is very good but it's also on the pricey side IMO. Slightly less expensive, perhaps, is Bossa Nova which has a fun vibe at dinner.
Edit to say: Bossa Nova may fail on the noise front, though things will likely be less crazy on a Wednesday.
139 8th St, San Francisco, CA
355 11th Street, San Francisco, CA 94103