Parker is known for being Fun to say the least. They want you to get a business license then as soon as you do they will expect tax rev as well. this is a Money driven. But I'm sure one of your Neighbors called you in as well.
Did you talk to the inspector? or did he just drop that and leave?
Might be able to talk to him and explain you work for 1up/2up and most of it is games of theres that you are picking up / bringing back / repairing / moving from location to location and that you are selling any games other then your own personal hobby games.