Digital Audio 2000 Rip-off IT they were in a white mini-van

I was vacuuming my vehicle when 2 guys approached me in a white mini-van telling me if i am interested in buying a home surround system. They said they were installers for the Bellagio Hotel and Casino Convention Center and they had two boxes of a professional home theatre surround sound left over that they did not install and were selling them to get rid of them. They showed me the merchandise and told me they had just sold one box of this system to a lady for $600.00. The price on the box did say $1999.00 and I paid $180.00 for this system. Luckily, I got their license plate number and their description.