It depends on your appetite - your hotel parking is $46/day (41 plus tax). Is there street parking? Sure, but meters in DC were "upgraded" and most areas you need to feed the meters (and meet the parking time restrictions) until 10pm M-Sa, only Sunday is gratis. If you happen to come in when there is snow, that will make the situation even worse as there are streets where no parking would be allowed during the storm and clean up periods. A car is just a hassle in the city, I'm in the burbs and even I hate driving in these days.