These guys are card scammers. The play is the girl will ask you to pay for her using your card and she'll give you $20 cash. The fake driver will switch out your card and hand you the pin pad with someone else's card. You enter in your pin, it'll approve it automatically, and now everyone goes their merry way none the wiser. Happened to me back in December, I luckily realized it in a few minutes and had by bank freeze the card. This was a few minutes ago in the Winners plaza in Heartland.