The current process is ridiculous - a random teenager in a vest with 15 minutes of training inspects the car when you check it out, and then you get a former drill sergeant when you check it back in. The current process is no less fair and Hertz is no less evil - but in this case its at least impartial and the scans are transparently available.
Whenever I rent a car, after getting the keys I walk around the car and take photos of it on my phone from every angle. If I notice any scratches or dents, I tell them. But I still keep the photos, just in case. Then I do the same when I return it. That way if - at any point - they say I damaged the car, I have timestamped photos.
It feels like an obvious, easy way to cover my arse if there's a dispute. Otherwise you're basically screwed if they claim you got the car scratched up.
I'm really surprised other people don't do that. Its what my family has done from before we even had digital cameras.
Turns out, you can send them all the pictures you like - all they did was send me a work order for scratches + repaint in a poorly specified location, with no comment on the pictures. No amount of emails or phone calls asking them to indicate where on the car was supposedly scratched led to anything - I just got passed around and around...
If my credit card insurance didn't cover it (Chase reimbursed me in full relatively easily), I would have taken the next step and did a chargeback. Maybe it would have been helpful if I needed to press the issue. But the presence of some tens of pictures between me and my wife didn't seem to accomplish much
Naturally I closed both accounts after this experience (the whole point of PayPal was to have protection in these cases...) but I suspect almost all companies are optimized for reducing support costs even if it means just a few lost customers.