Funny things happen when you’re bored and cruise around Wikipedia. Sometimes you learn shit! But, take for instance the article on the Tenderloin (citations are apparently needed, fools). On the little magic info map thing on the right hand side, it places the absolute center of the Loin at 545 Eddy which also happens to be ABC Automotive.
While I’m not sure if ABC is happy or displeased at this placement, can it really be said that that is the dead center of the Loin? For me personally, I think that both street boundaries and the dead center of them are really, really fluid. But, if one must place a pin on a map, I’d propose the Donut Express at 301 Eddy but that’s just me.