I'm sure that bar's CCTV isn't the only camera in the area.
The farang should have known better that to get in a argument with the Thais over a parking spot (was it a car or motorbike?).
They say it's was a gogo bar, so I'll assume it's on Soi LK Metro, whenever I park my motorbike in front of a bar in that area, I make sure I go in their bar first, never had a problem over the years.