Parking meters as a tax on business is complete garbage. In any town center, there is not an infinite supply of car parking spaces. Car parking spaces take money to create, they take money to maintain. Parking spaces in big city parking structures typically cost $30,000-50,000 to construct.
Urban parking spaces don't fall from the sky, they have to be created and maintained. They use space that could be dedicated to more valuable purposes like housing and schools. A pro-parking policy does not tilt towards the lowest income urban travelers--those are bus riders, bike riders, pedestrians. But even Good thinks we have to tilt towards car drivers.
Small businesses repeatedly get hysterical about parking charges. No one will ever drive to my business again! People will drive 25 miles away to avoid 50 cents in additional parking charges (this argument has been made seriously in California). Meanwhile, in fact, parking spaces go begging, as drivers fight for the space closest to their destination.
What is fair and effective is charges that are based on the desirability of the space. The space right in front of the prime business corner should cost more, the one four blocks away should cost lost. Cities which do this target for a price that will create 85% parking occupancy. There always will be some spaces. When cities price this way, they often find that the price of more spaces goes DOWN rather than up. Let's try that again, parking hysterics, in a demand based parking pricing system many spaces go down.
Or you could follow the great progressive policy of cutting transit service in order to make parking meters cheapter.