Stole this from MidwestChick‘s place:

At least they’re telling the truth instead of some nonsense like “Safety” or “For the Children”.

You have to pay a fee for permission to drive effectively – a license so to speak, billed upon usage. But you’re only allowed a certain number of fees paid before you get a time out until your fee count resets.

I assume this is Aurora, Colorado so I have to believe those that posted this sign didn’t realize the message.