Wow, most people say about a week or 10 days for return of deposit.
You could increase your deposit to the maximum of $3000 then close it to have the $3000 report to the CBs. Capital One is pretty quick at returning the deposit so if you could spare the money for a month....
Better plan on 3 months for money tied up. They say 60 days and for me it took a little longer. Probably not worth the trouble, IMO.