She has previously taken part in flood rescue efforts, including a recent mission in Hat Yai, Thailand.
Netizens speculated that the pair were attempting to split or evade the cost of parking.
Researchers have managed to trace the identity of the woman buried there.
The stall claimed that there was an issue with their point-of-sale system.
The pair began their affair in 1993, when they were both married to their respective spouses.
Some felt that the change went against Singapore's car-lite vision.
This was the second fire reported in Sungei Kadut in the span of a week.
SCDF assessed one person for minor injuries but they declined conveyance to the hospital.
Offenders can face a fine of up to S$1,000 and/or a jail term of up to three months.
The rider was sent to the hospital in a conscious state.