$2200.
The state of California has this "unclaimed property" system where if a company owes you money they pay it to the state, and the state waits for you to claim it. (
https://sco.ca.gov/upd.html).
One time my wife was hurt at work, and part of her settlement was to leave the company. Some time after that we moved, and they were unable to reach her. They decided they owed her $2200. Sweet.