I rented a car in Boise a few years ago (Hertz). We had a rock hit the windshield and it caused a miniscule scratch/chip in the windshield which I never noticed. They tried to charge me almost a $1,000 for it. I received a very threatening notice in the mail about it and they basically called me every day. I called the local Safelite for a quote on what it would cost, roughly $200 for the most expensive windshield for that make/model, even though the Hertz location presented me with a receipt for the window replacement that was almost $1K.
I found it odd that the person chasing me down for money was from a collection company outside of SLC, Utah. After doing some sleuthing I discovered they were a company that owns a bunch of independently-owned Hertz locations. I called Hertz corporate and they said there was nothing they could do (I was Presidential at the time). I would up letting my insurance handle it, and the rental company continued to chase me for the $500 deductible and I just ignored them for about two years. I have no doubt this was a scam and that they were hoping my insurance would cover it all.
Since then I've never given the benefit of the doubt to rental car companies, and will never rent from an independent location again. I check my receipt when I get it and look out for zombie CC charges afterwards.
While I doubt there's any kind of scam operation going on at the Orlando location, they don't exactly have an incentive to not overcharge you and they're so short-staffed right now there's probably zero quality control.