I swear I'm getting like that. This morning I parked in a street I don't usually park in. The "No Parking" signs said Mes Par, Mes Impar. After some time, and parking on both sides of the road, I decided that May, being the 5th month was Impar so I parked. Only when I got the ticket did I realise that the sign was a prohibition. My logic was completely wrong about what the signs were telling me about where I could and couldn't park.
The only bright spot in this dismal situation is that the ticket was issued by my pal on the local police force. He didn't know I had a new car. He is going to see if he can "fix" the ticket.