Following up on the snitch's lead Jake sends Larsen and Larimer to root out suspect Rodney Davis. They head to a neighborhood where the locals' sixth sense is evident as their unmarked car cruises by...
... and again here ... (anyone know these addresses? Tell CitySleuth!).
Then ... As they approach their destination they pass a brick-walled corner bar, the notorious, if not nefarious, Hank's 500 Club at 500 Haight Street on the corner of Fillmore in the Lower Haight (not to be confused with the other 500 Club at 500 Guerrero Street in the Mission).
... and Now, it's still brick-walled but now has windows and a slimmed-down corner post. The Wonderland Chinese restaurant is the current tenant.
Then ... They pull up in front of the American Veterans Club at 530 Haight and the street kids scatter (map).
... and Now, not a fictitious name, this was a real club at this location but it had closed down at the time the movie was filmed. Today The Mad Dog In The Fog bar is the occupant. (Note the poor quality road patch - typical of today's SF streets - the roads were in much better shape 40 years ago).
Then ... As they enter the club we see Lou's and Brown's Used Furniture store at 525 Haight across the street.
... and Now, the Indian restaurant Tandoor on Haight has occupied 525 Haight in recent years but since 2014 a Chinese eatery, Ming Yao H, has taken over, daring to offer direct competition to Wonderland a half block away.
Then ... There's some illegal gambling taking place inside the club. Larsen, duhhh!, mixes up their chips to flaunt his authority. Not surprisingly, when he asks if anybody knows Rodney Davis he's met with peeved silence.
... and Now, the Mad Dog In The Fog bar has replaced the unpretentious surroundings above with a Falstaffian conviviality. The round pillars are still there but the bar has been pushed out and extended.