"That's part of the deal and their commitment. If they did allow their workers to park in their parks all day they are shooting themselves in the foot."
Parking wardens would still enforce the fact the parking was only for two hours, he said.
"However, that may mean people may try to move their cars every two hours which would also be a risk."
Mr Clout hoped the trial would bring more shoppers to the CBD.
The council would measure the effectiveness of the scheme during the timeframe.
Mr Clout said if a decision was made to implement the trial it would run for three months starting from the beginning of August.
Eight months into the Rotorua trial, the Rotorua District Council said it would not release any information regarding numbers of parking fines or tickets it has issued, or how much revenue it had lost since its introduction.
The council's acting chief operating officer, Henry Weston, said the council wanted "to give the parking trial time to run its course, gather more data from the parking system, get footpath counts undertaken and engage with inner city stakeholders".
"Then we'll have reliable information and data which can form part of the review of the free parking trial," Mr Weston said.
District councillor Charles Sturt, who works in the central city, said the trial had been a success.
"But there is an element of in-town retailers parking outside other businesses. Some for the whole day.
"I would actually advocate we go down to an hour free [parking], that's ample time for people to do their business. If they can't then they can pay for a metered space.
"I think it has brought people back into the CBD," he said.