If it's fine, then you have saved the employee from manually checking

Exactly. Not only that but the human is more likely to overlook some things. It also creates a digital record of the complete condition.

Have the AI go over the vehicle, being insanely meticulous and then pass that info off to a human who verifies any flagged damages in a couple of seconds and makes decisions about what needs to be charged.

Combining the 2 improves efficiency and accuracy.