Enforcers stopped the ambulance and allowed it to use the bus lane only after 30 minutes.
Police said he acted out of frustration after being unable to withdraw money from an ATM.
Exam organisers said they frequently encountered issues with mailing test vouchers, delivering results, and contacting test takers.
Prosecutors argued he bore greater responsibility as the more experienced climber who planned the expedition.
Netizens have dubbed him the "busiest man at the Olympics".
A 33-year-old male driver was conveyed conscious to hospital and is assisting with investigations.
He was later detained by police, who found four Viagra pills in his suitcase.
Under Singapore law, citizens and permanent residents cannot serve in a foreign armed force without proper authorisation.
Netizens overwhelmingly criticised PHV drivers for reckless driving behaviour.
An envelope of cash was seized from the official, but it is not stated how much cash was contained within.