Last Wednesday, rangers fined scores of people who had parked illegally on the grass near WIN Entertainment Centre while attending the Wiggles concert.

The decision led to angry scenes outside the venue as motorists found their cars had been ticketed.

The scene was repeated again when rangers fined visitors to the afternoon's capacity show.

The council's manager of regulation and enforcement, Peter Chrystal, said the rangers were responding to complaints and did not target the event.

"Council does not have a policy to target major events, but in this case a children's event was being held and illegally parked cars presented a serious safety risk to children and families attending the event," he said. "(Illegal parkers) also compromised the safety of passing motorists and pedestrians and blocked the way for buses attempting to travel down Burelli and Crown streets.

"Council has a responsibility to regulate parking in the city by enforcing the Australian road rules."

Since the event, the council said it would start holding discussions with event organisers "to develop a protocol to better manage the situation where a major event is held during business hours".

The fines outraged visitors to the area, with one Mudgee resident saying, "We'll never come back here again. It's ridiculous."

The furore came as the council considered submissions on its controversial plan to install parking meters across the city.

The council hopes to attach parking meters to 850 spots in the CBD to address a looming parking crisis.

It is expected 7200 additional spaces will be needed by 2026.