I was just browsing the web and found a link to the QA&Ps bussiness car #6666. According to the website, this car became SLSF #10 in the late 1940s. The website also indicates the car was sold in the 1960s. The car is currently in Fredericksburg,Texas. More details can be found at the link http://www.fredericksburg-lodging.com/Pullman-car/
Site has been changed - correct link below. http://www.fredericksburg-lodging.com/Pullman-car2/default.asp
A couple of years ago, I took the spousal unit to Fredericksburg for some R&R at a B&B. I found the QAP business car without difficulty. As noted, it serves as a B&B, but its not in a very scenic location.
Karl .. Did you and the spousal unit stay in the car?? (I love that terminology - gotta remember that one.)