Not exactly parked but I did hit a car.
When in High School, I would ride my bike to school some times. The front of the school was on a hill, witha traffic light at the bottom. This caused a line of cars to back up in front of the school. Also in front of the school was some faculty parking. Being young, and invincable(and stupid), I would ride between the cars and the curb, down hill, way faster than was safe. One of the faculty turned right to go into the parking lot just as I was aproaching the entrance, and WHAM right into the front fender. Taco'd my front wheel, put a big dent and scratch in the front fender. The faculty member was naturally upset that he hit a student. No real injury except bruises. It was a nice way to meet the principal.