stone-mason, I think corporate corruption issues would preclude an airline from trying to falsify their records. Besides, there are too many employees watching the rentals who would not benefit from such illegal dealings and would probably revel in blowing the whistle against any corporate efforts as this.
In today's environment I doubt there would be any concerted effort to deceive e.Digital. There is probably a way to monitor usage, as well, since it is a closed system.