We are flying into Baltimore for 4 days in DC and 2 days near Williamsburg. Husband has mobility issues and we will be renting an electric scooter. It breaks down to 5 pieces, none weighting more than 35 lbs. Wondering if it would be better to rent a car for getting around. Are there plenty of handicap parking spots near the Smithsonians, the various monuments and the zoo? Or would we be better off taking MARC train from airport to DC and traveling by metro/taxis in DC and then renting a car for going to Williamsburg? Hotel where we are staying costs $23/night to park, right by the Pentagon. Not sure if there is free parking anywhere close to that. Anyone know the availability of handicap spaces in DC? Thanks.