[RKDinOKC]

Those persons of unknown fraternal descent.

With all the RFID technology being used nowadays, surprised rental companies don't track their assets. Maybe that's a good business opportunity, selling tracking devices and software to rental companies. Besides a more accurate inventory system, they could more easily work with authorities to recover and persecute. If not for their own asset management it could be a major differentiation between them and other rental companies.

It could work with an iPhone app so you could set a parked mode that alerts you and the authorities when the asset is moved while in parked mode. Bet it could be done for less than $100 per asset.