Acura of Pembroke Pines Bought a used car and it died on the way home. Needs $1600 in repairs just to run Pembroke Pines Florida

I purchased a 2005 Audi S4 from Acura of Pembroke Pines. The car died on the way home, approx. 40 miles from the dealer.
Purchased the 2005 Audi S4 with 80,484 miles on Dec. 1, 2014 from Acura of PP. The car died on the way home, with all electrical systems shutting down. The stock number is XXXXXXX, the total price paid was $11275.24. This included a $695.00 dealer fee that I was told by the salesperson, ***** Romero, to cover "going over the car". I paid for the car with a debit card, and 2 credit cards.
When I test drove the car, I found many defects. The glove compartment was locked and would not open. There were interior trim pieces missing. I could feel fresh oil underneath the car when I reached under the front bumper. There was also a battery light on.
On my way home on I-75, a large battery light went on, then all the indicator lights went on. A minute later the instrument cluster lights went out, then the headlights went out. I was able to pull off in a parking area, and the car died. The car died, and would only start if jumped. The battery had a date sticker of 6/14, and appeared to hold charge for a limited time.
I took the car to ****'s Auto in Jupiter and they told me the alternator was bad and the repair was $1500 due to it being a water-cooled alternator, and the front bumper would have to be replaced. I got 2 more quotes - Audi quoted me $1600 over the phone, and A ***** Automotive in Stuart said $1000.
I tried repeatedly during the week to get in contact with Acura of PP. I eventually was passed ** to Donald Young, used car manager. I told him I wanted to return the car, he flat out said no, but said he would help me out to fix the car. After numerous delays, he offered me $350 towards repair, which I told him was insufficient. Larry Schlossberg, the GM at Acura of PP then called me on Saturday, Dec 6, and said that $350 was "all that he had left in the car" and that "if I would have lived only 15 miles from the dealership I would have made it home."