Parking tokens(or arcade tokens) shouldn't have any issues. They aren't issued for general currency like coins are, they are used to redeem a specific service

Parking tokens(or arcade tokens) shouldn't have any issues. They aren't issued for general currency like coins are, they are used to redeem a specific service provided by the people issuing the tokens. In that way, their redeemable value never changes. A parking token means that you will be able to park in a space for a certain amount of time, no matter how much they are work in terms of actual currency.