Several Google Street View images show white cones placed around one residence in particular, 2808 Broadway, over the course of several years.
I'm dumbfounded local kids havent made it a tradition to fuck with the cones...
Like, that picture had like five cones for one spot, steal them randomly once a week, and on the anniversary week get a bunch of friends to carry all 260 cones at once and just pile them all in the owners yard.