Quoted from LTG:
I don't really care if you believe it or not.
I don't buy stuff in parking lots. You know it's a scam of some kind going in.
Same here - I've read numerous stories of scams, including one popular one where they sold speakers out of a van and they were basically just boxes with a brick in them.
Funny, but true: I was visiting a friend and he and wife started to tell me how they were approached in a parking lot by a guy selling speakers. In my head I was thinking, "ah crap you didn't fall for that did you?"
She starts saying how she figured they were going to get robbed or ripped off, and then he motions over and says "but they sound pretty
I think I blurted out "Wait. What? They work?!"
They did sound OK, but I think it was a different variation where they say it's some top brand, but it's really fake knockoffs.