I have a similar story, we always hire in the US, always have the full insurance so dont really care if the car gets a bump in the car park etc, its fully insured

so we fly into schiphzl, get the train to the hotel, spend a few days doing Amsterdam, then Train back to airport to hire a car to head more into Holland for a few days in a theme park, hire car guy trys to sell me extra insurance incase of car damage, tells me its 1500 EU per mark on the car, yea yea, you make commission on that sale, so I decline it

car was parked up in the hotel car park and didnt move the entire time, so when its time to go, I spot a car park prang, its 2 rather large scrapes / dents, Oh great, thats 3000 EU which I will be charged and then have to fight to get it back, this of course meant the 2 hour drive to the airport wasnt great and it really was a downer on a great trip, we arrive at the airport, I stop before the car hire place as I always do ( I have a thing about getting all of us out of the car and not leaving anything behind, so I always pull into a spot, empty the car and then drive into the return car hire ) anyways, the hire return guy points to a spot to park, I pull in leaving loads of space between my door and the next car, it turns out Im very close to the car on the other side
I jump out, the guy said to me " couldnt get much closer than that " I look at the gap and its really close, he walks around the car checking it over, peers down the side where its tight, then says " all's good " , hands me a print out and away I walk ( well skipped with a certain happy spring in my step )

I would have loved to have said I parked close to hide the damage, but I just misjudged the parking and didnt realise