I have practiced techniquest with non-Aikido practitioners...but in my opinion people are better off learning techniques on the mat from a quality Aikido instructor.
I had the chance to train at a couple of Aikido dojos in DC while I was there for work. One was Okinawa Aikikai (dcaikido.com) with Sensei Michael Veltri and the other was Aikido of Arlington (www.aikidoofarlington.com
) with Sensei Yvonne Thelwell. I don't know what you are looking for but I would recommend either one of them. I am not from that area so I don't know what else is available to you.