I worked in code enforcement for a few years after retiring from the PD. One of our tasks was to check all the amusement licenses on the games in the city annually. All the city cared about was that they paid for their annual permit. They could put down anything for the company running them because the owners/company running them was not required to own a business within the city. Nobody at city hall checked for a valid business license.
As said...it was cash and tax free unless somehow they would get busted for something further up the chain as is happening to Kevin right now.