Make sure there's no early termination fee. If there is, leave $5 in the account and schedule a monthly recurring $0.01 ACH deposit, and wait 6 months.
There is an early account termination fee, account needs to be open and in good standing for six months. If you close the account before then, I'd imagine they'd take back the bonus (if you have a zero balance, they would report a negative $250 balance to ChexSystems).