This is no simple jigsaw-puzzle fail. No amount of rotation of swapping of tiles fixes this, so how did it happen? Actually I'm not sure the font size is the same, either.
Hey, you can see it on Street View too!
Seriously? Those aren't put down as tiles. Sidewalks are cast in place, so this means that you're seeing the result of three different pours. Each time, they cast a full word in place, which was subsequently broken up. ICK ST was the oldest, FREDERIC cast after that, and ///// DEL MAR most recently.
And they're probably going to have to do it again, because that doesn't look like a compliant curb cutout.
The new ADA ramps cut both sides of the corner and add friction material, so yes, it will be redone correctly when the city comes back through that street. If you call 311 and complain about wheel chair access they will bump that corner up on their repair list.
I very much doubt seriousness in this case. But JWZ is always so deadpan, it can be hard to detect the humor particles streaming off of his posts sometimes.
I'm guessing at least some of that was from when ADA went through and the city added the curb cut.
Occasionally they do take the trouble to fix things up nicely (if redundantly and anachronistically) after they add a curb cut: http://www.flickr.com/photos/walkingsf/3500115322/in/set-72157622518303519/
historical subduction zone, possibly the one that exiled Norton I
Seriously, what posessed you to go to look on Street View to see if it was there?