There's a ST:Voyager ep where Harry Kim ends up back in his apt. in San Francisco with his girlfriend before being assigned to Voyager. I cannot, for the life of me, remember any more of the plot than that, other than that there was something that looked suspiciously like a Starbucks directly below his apartment. However, yet more evidence that San Francisco is, in spatiotemporal displacement terms, the equivalent of The Node linked to All Others.