No, the Tesla was not on Autopilot.
What we assume happened here is that for some reason, the accelerator pedal was either depressed or stuck/caught up (perhaps under the floor mat).
As you'll see in the video, this out-of-control Tesla Model X collides with a parked Toyota Tacoma then swipes the side of a pickup. It seems that when trying to park the Model X, the driver either unintentionally hit the accelerator or the pedal got stuck for some reason. The vehicle then circles a few times while crashing into other objects and narrowly missing several people.
More Crazy Driving
The CCTV clip was published on Tu Noticia PR, which states a "strange vehicular accident occurred" involving a Tesla. Tu Noticia PR adds:
"[The Tesla was] very close to causing injuries to a young woman getting out of the Toyota" and "extremely close to running over a person on the opposite sidewalk."
"The driver claims that the electric Tesla vehicle suddenly accelerated. No one was injured."
Thankfully, it doesn't appear as though anyone was injured.
The incident occurred in Puerto Rico and here's a Google view of the street:

More details on the incident can be found in the video description below.
Video description (translated via Google) via ZMR1 on YouTube:
He was about to run over a person. A strange vehicle accident occurred on August 10, 2019 in Mayaguez, caused by a Tesla Model X electric car. The vehicle was parking, when suddenly it accelerated, initially impacting a pick-up bus.
The impressive images show that the Tesla vehicle was very close to causing injuries to a young woman who was getting off the white Toyota Tacoma on the passenger side. Then he was extremely close to running over a person on the opposite sidewalk. The march continued uncontrollably and in a circle, subsequently impacting a second vehicle.
The video shows that other vehicles that were passing were saved "by a hair" if they were also impacted, but even more surprising is that the uncontrolled Tesla literally passed inches from the person on the sidewalk. Fortunately, the pedestrian reacted by moving or stepping aside, avoiding being hit. The driver claims that the electric Tesla vehicle suddenly accelerated.
The incident occurred on Saturday, August 10, 2019 on Calle De La Candelaria, in Mayaguez.