I had the same thing happen to me about 5 time when i used to live in mass.

One time a middle aged gent and his wife (i assume) pulled up next to me at a light and asked what was up with the windows and what kind of car it was. I, in a mischievous mood, decided to tell him it was lamborgini's latest attempt four passenger exotic.(in the spirit of the espada) He replied, nice! and kept on going. (he was driving a buick).

It may have been mean; however it gave me great amusement