I think it was determined that the other “incident” was really not an incident. The people were apparently shopping and possibly went the wrong way when they left the store.
This video shows evidence that they were parked on the hill before taking off and running down the hill and into the drainage ditch.
Were they sitting there doing drugs, then got scared and took off the wrong way ?
I doubt the part about just being shoppers who went the wrong way in the parking lot.
Route of car that came out at Trump's motorcade on Aug 30th 2017