If you are visiting us there are several pay-to-park locations that charge a daily rate for vehicles. The Hilton and The Courtyard Marriott both have Garage Parking for roughly $30 per day. A cheaper way, especially if you only require overnight parking, is to take advantage of the residential parking in the area. No permit is required M-F from 8pm-7am and you have 2-hours leeway after the 7am enforcement time.
Most of our guests have found this option feasible to their needs during their stay with us, especially since these zones are completely free on the weekends and holidays.
Joseph, Innkeeper
American Guest House in Washington DC