I got a ticket for parking too near a fire hydrant. I paid it.
I called Public Works and informed them that there was no yellow curb by the fire hydrant. It was ten feet back from the curb and easy to not notice. PW came out and marked the curb.
A week later I was ticketed for parking in front of the same fire hydrant. I was past the painted yellow line and took my prior paid ticket, informed the judge that I had had PW paint the curb and still got ticketed. She threw it out.