Ararat Acting Sergeant Silas Stephens of the Northern Grampians Highway Patrol said on Monday that officers in their areas had had a "quiet" Easter long weekend, during which they undertook the annual road policing exercise known as Operation Nexus.

It followed the state government and Victoria Police urging people not to travel to their holiday homes for the long weekend.

He said 30 offences were detected, including four drink drivers.

Officers did not attend any collisions, as coronavirus restrictions greatly reduced traffic in the area.

"Highway Patrol is still enforcing all road rules and is actively testing for alcohol and illicit drugs," he said.

"It's a good thing: It means people are abiding by the COVID-19 restrictions," Horsham Acting Sergeant Curran said. "Uniform issued one vehicle-based infringement across the weekend, where the driver failed to change their licence details."

In St Arnaud, Acting Sergeant Prit Thandi said the city had seen "minimal traffic".

In Dimboola, Leading Senior Constable Neil Zippel said while the weekend had been quiet, he had been called to two false alarms.

"A couple have rung up having seen smoke where farmers are taking the time to burn piles cleared for fence lines," he said.

"They've seen it and though it's a social bonfire, and you get out there and there is one person there."

The Grampians region saw a horror Easter long weekend in 2019, with a fatality in Armstrong and a four car collision in Dobie on Good Friday.