Sandy Sansing Chevrolet Foley

I went today to buy this 2013 Ford Taurus as advertised for $3989 the car was ok engine light was on and it had a slight hesitation when taking off from a dead stop nothing major, I figured it needed a tune up. Anyway, I told the salesman that I wanted it if he would go inside and tell them $3000. I would take it now. Well he came back with a price of $3725 plus taxes and fees $5000... What in the hell happened to the $3989 the car was originally? Needless to say, I just walked out!!!!