I think it is funny the "drive-by" poster starts out with this sentence....
"carnivals guidelines on gift cards state if lost or stolen they are just like cash"
That's the only reason he bought them from "the lady". She said "read the carnival statement, they are just like cash no matter what."
Except that stolen property is still stolen property, and it is not legal to own stolen property, and if you resell it and it is then found to be stolen, you lose - no one owes you anything.