Also, the estimated values are way over market value, as in auctions. Each Nebraska title ring is not worth more than 15k. UCF Peach Bowl ring is probably worth 7500 max, if the coaches actually get gold rings. These numbers are just for insurance claims.
Whoever stole these will have to find the right Nebraska fan who has enough money AND can be totally discreet about owning these.
If they pop up 100 years from now, I can imagine Frost's estate suing for them back.