Childhood memory

I have moved around quite a bit in my life, but when I was in kindergarten through third
grade, I lived in Louisiana.
When I lived in Shreveport, Louisiana, I was quite the hellian. I lived in a suburban neighborhood with my mother, her husband (who is now my ex step-father), and his two kids.
My step-dads mother stopped by the house to bring us some homemade dinner. I honestly have no idea what I was thinking, but while everyone was inside, I went out to my step-grandmother's car. I got in the backseat and covered myself up with a large coat.
Quite some time passed, and she finally came to her car. I didn't move a muscle or utter a single word. I let her drive all the way across Shreveport to Bossier City, where her and her husband lived. She never noticed I was in the car, so when she got out, I stayed there for a moment.
Contemplating what to do, I decided to get out of the car and go knock on their front door. Mind you, this is later in the evening, probably around 8 o'clock. The shock on their faces was indescribable. I can still to this day remember what they looked like when they opened the door.
Not suprisingly, this turned into quite the fiasco. My mom had to drive at night all the way to Bossier City, which was a good thirty minute drive. She was extremely unhappy about the entire situation. All they could say was "Lauren, why would you do that?" Being seven years old, I had no valid answer. I don't think that I wanted to be an asshole, but in retrospect, that is exactly what I was being.
Eventually, everyone got over it, but this is probably one of the most vivid childhood memories that I have, and frankly, I think it's hilarious.