When you are in small business and have a parking lot, fixing up blacktop is very expensive. So when somebody who looks like a contractor stops in and says he has some blacktop left over from another job and wants to repair you lot on the cheap....It's appealing. I've had the same line used on me and while enticing, There's always something about these people.
So it was for a Harrisville businessman caught up in the scam where the cheap price becomes much more.
There is no such thing as leftover black top that someone else paid for. The guy in Harrisville called the law and the scammers scampered, but people who offer to sell you leftover things from another job are thieves.