Some years ago we discussed a person who was injured when he ran into a parked car. The car was parked in a reasonable way, but the meter had expired.
The driver of the car that ran into the parked car was not drunk, or texting, or speeding. It was just an "accident" in the basic sense of the word. Shit happens.
Since the car was illegally parked, some thought the owner of the parked car should be responsible for the damages or at least a share of the damages. Some disagreed. Since there is case law on this, some just saluted and were unable to give the situation thoughtful consideration.
[This may not have been the exact scenario we discussed; I tried to lay it out in a clean way.]
If that was a real scenario, and anybody believed the parked car was "at fault", they are lying to themselves and everyone else. Even if it was seen as a non-allowable "obstacle" or something similar, the driver is fully informed of its presence...in no way is it "unknown" to the driver.
I would compare this to putting a Giant black slab, a la 2001, in the middle of the road. You don't get to run in to it and then claim that slab is at fault.