It sounds like the same thing the Scion Finance Mgr tried to sell me.
They etch a special tracking number on all your windows with a phone number. That way, if your car is stolen, they can locate you if they find it (or some of the parts).
The Finance carefully explained the Toyota extended warranty as an option. Once I said I didn't want it, he printed out the contract and the separate $249 for the Anti Theft Registration was already on the contract. He had to remove it because it automatically is added to all contracts.
Since you have already paid for it, I think you should at least go back and get the details on the package. It provides extra insurance if your car is stolen and never recovered, rental car coverage, and several other things.