Associate Professor Kenneth Goh Toh Chuan is also a former national swimmer.
One of the winning tickets was bought from an outlet in Upper Boon Keng.
The maximum temperature on a few days may "slightly exceed" 34°C.
No injuries were reported.
The argument reportedly began after the driver accused the woman of boarding the wrong car and wasting his time.
His response came after a Reddit post raised questions about how the business continued operating despite its seemingly low footfall.
The case has been adjourned to 28 Jan pending further investigations.
Drivers claimed jobs were cancelled by the system without their input.
Her 14-year-old friend, believed to be with her, was also reported missing.
After three years along the iconic stretch, the homegrown photobooth studio bids farewell to where it all began.