My dad got an parking ticket due to me

When I were 7 , my dad parked outside of an store and left me and my little brother in the car. He said he would be gone for 5 minuets. He were gone for an lot longer. I watched through the window whilst two people came out of the store and up to the car. The car windows were down. I watched as they put an parking ticket on his car window and took photos of the number plate. I just sat laughing. I were mad at my dad for leaving me in the car for what felt like ages. My dad came out of the store later and yelled why did you not tell them I would only be gone for 5 minuets ? Years later he still brings it up and is still mad at me over it.