I used to pass this cone frequently during my travels on this road, and I could not figure out why it was there. However, on my first drive past it after dark, the reason became clear. For some reason, on this perfectly straight-as-an-arrow street, authorities determined that the white dotted line had to curve to the left. The lady or gentleman who placed this cone must have had some trouble with vehicles crashing into her/his car parked on the street, as there are no driveways available for safe haven. Just goes to illustrate that there are (sometimes) reasons for inexplicable things.