Wellington police have issued 50 infringement notices following dangerous driving at a Porirua tangi in October.
A group of more than 120 cars travelled from Waitangirua to Plimmerton for an 18-year-old who was killed in a crash earlier in October.
Kāpiti-Mana area prevention manager Inspector Nick Thom says a significant disruption was caused by a number of vehicles.
"The large funeral procession on Monday 11 October caused significant disruption to traffic with a number of vehicles driven in a dangerous manner."
At the time of the incident, two people were arrested and four vehicles were impounded by police.
Insp Thom says police are still looking into other possible offending and aren't ruling out further enforcement.
He adds an unrelated tangi is expected to take place in Porirua on Wednesday, which police will monitor.
"Police respect the mourners' wish to grieve and will be monitoring the event to ensure public safety," he says.
"Enforcement action will be considered if required, however, police urge those involved to be considerate of other road users and adhere to alert level restrictions."