Most of the roads around SXSW at Austin's convention center are closed, but that didn't stop Google from enticing a dozen mayors visiting the city to head outside of town to test-ride self-driving cars. While the mayors undoubtedly consider Google's driverless cars hip and many of them might think of Google as the end-all-be-all of cool , perhaps more telling is what Jamie Ross from Buzzfeed caught journalist Andrew Marr asking British Chancellor George Osborne: he asked if he could get "completely smashed" and then get home in a driverless car.