Fire and Emergency NZ Otago group manager Bobby Lamont said the car sped through "showing no regard for the safety of emergency service personnel at the scene."
The "frustrated and impatient driver" ignored road accident signs and firefighters asking them to slow down, he said.
"It turned into a very dangerous situation for our people."
The April incident in Clyde was not an isolated incident, he said.
Near misses were increasing across the country but particularly in Otago and Southland.
In February, a firefighter at a car crash was verbally abused and almost dragged out of a fire truck by a man apparently angry the road was blocked at a two-car crash in Playfair St, Caversham.
The man also drove on the wrong side of the road past firefighters managing traffic at an incident.
In 2023, on State Highway 6 near the intersection of Lake Hayes-Arrowtown Road, a person drove through a crash scene at speed, hitting an accident sign.
"The sign was flung approximately 10 metres at force and only narrowly avoided hitting a firefighter."
Mr Lamont was worried that it was only a matter of time before one of his firefighters was injured.
"People must be patient when the road is blocked by a crash.
"We put traffic management in place for the safety of everyone involved, including motorists."
He said drivers were endangering themselves, other motorists, emergency services, and the people involved in the traffic incident
Statistics showed that nationally there were 55 health and safety incidents in the past two years under the category of "motorist behaviours at incident ground".
However, most cases went unreported, Mr Lamont said.
"Unsafe driver behaviour at incidents is so commonplace now that often our people won’t report the ‘minor’ incidents.
"We really just want everyone to be safe and need drivers to get on board to help us with that." - APL
