$800 cab ride

What does it cost to go a couple miles in Chicago while riding in a cab?  How about $800?  That's what it cost a college student.  The cab driver took her credit card and swiped it on his Square.  Becky signed with her finger after the driver told her it would be less than $10.  She even gave him a $2 tip.  But when the statement arrived, it wasn't $12 or less, it was almost $800.  Because she signed, it looked like she was going to have to pay it.  Even the police couldn't help her so she turned to a local paper's "What's your problem?"  This got action.  Square has promised a refund and the driver has temporarily lost his license until an investigation is complete.  expensive ride