Myron,
Not much help other than to check
Metro - Home page
for info on Metrobus and Metrorail access for your scooters to get into town.
I would suggest doing research on the places you want to go in advance of your trip to make your experience the best. Not that I expect access via scooter will be an issue but I know some restrictions have been put in place at some locations in terms of what you can bring, etc. so it is best to plan ahead.
Hope that helps a bit and have a great time!