maybe the train reversed direction due to the parked car to avoid reaching an early end of the line terminus like what is shown in this 1953 photo
Source: Pacific Electric Railway Historical Society
http://peryhs.org/wp-content/themes/...w=1200&h=&zc=1
Metropolitan Coach Lines / Pacific Electric streetcar no. 5117 on a railfan trip reaches the abrupt terminus of the Ocean Park line (thanks to a parked car) on July 17, 1953