Hey man, that post is three years old. Slim chance Bill will return to provide any details, and considering there's only one vague post about it, who'd know anything?
This is a number currently associated with a scam to sell a vehicle using classified ads in several newspapers in different states. The vehicle is in a different state than the ad listing. They will eventually ask you to deposit gift cards for the purchase price in a fake Google Wallet site. The number will not be answered but you will get messaged back and emailed if you give them your email address.