Chrysler fires agency for "F-bomb" tweet

An employee of Chrysler's agency New Media Strategies apparently thought he/she was logging into a personal account and tweeted "I find it ironic that Detroit is known as the #motorcity and yet no one here knows how to fucking drive."

However, the tweet came from the official Chrysler account @ChryslerAutos.

The agency took action and fired the employee. However, Chrysler then announced it was not renewing its contract with the agency.

Over reaction by Chrysler or a smart corporate decision?