Netizens said he should be reported for driving without a licence.
No injuries were reported among the 23 crew members of the Singapore-registered vessel.
The Malaysian broadcaster said it has taken "appropriate action".
The pedestrian did not report any injuries.
The incident reportedly took place at a Korean Christian church in the mall.
Netizens called the tailgating driver a "cheapskate."
The seller also asked the child to write a 1,000-character apology letter by hand.
The victim was visiting his grandfather in the hospital at the time.
The patient needed to be transferred urgently to another hospital for further treatment.
The youths screamed in relief about how the tree almost hit them as they rode for shelter.