Speaking of parking, there was a local incident in the news just a couple days ago that was really sad but also makes me so angry at the waste.
This was radio news, so the details are a bit sketchy, but there was some traffic accident in the fast lane or carpool lane of a divided highway with a grass median. Fire/EMS was already on scene and had parked their equipment to shield the accident scene from traffic (I have no idea if there were flares out yet) but someone (inattentive? DUI?) comes barelling along, sees the flashing lights late, swerves onto the grass median to avoid hitting the emergency vehicle, and runs over a victim being treated by a medic on the grass median, away from the roadway. The medic survived but the victim was killed. What a waste.
Anyway, it just emphasizes the point that just because the original accident has happened, doesn't mean that you can't be involved in another one in the same spot. So be very cautious if you're going to be around the accident scene!