When you rent any vehicle, make sure to inspect the car, van, or truck and note any damage, scratches, or dings. It would be useful to even take quick photos.
Usually, someone will go out with you to go over the vehicle and mark any damage. However, this U-Haul location told me to physically do it myself since they were busy.
Upon returning, I was asked about some dings and I told them I noted it in the document and took some photos. I was clear to go.