Has anybody else got a check fro Auto Palace Porsche in Pittsburgh PA.?

Fed Ex just delivered a package I opened it. Did not reconize the party it was from. It is a Check from Auto Palace Porsche 7462 Baum Blvd., Pittsburg Pennsylvania. Made out to me for 2,560.00 payable in Cash. But I got on the Computer and started looking for this company it's address is Really Auto Palace Porsche, 4627 Baum Blvd, in Pittsburgh PA. The person who sent me the FED EX was a Lisa R Jackson.from Woodbridge VA. It is a Scam The company told me to shred the check to not turn it into the police