A lightning-quick shoplifter has been charged after she parked her vehicle in the fire lane, entered Walmart, snatched a box of diapers, and left -- all in three minutes.The woman, Sara Renae Shelton, 22, is charged with shoplifting for the crime that was captured on Walmart security video. She will face hearing March 10.Shelton was charged after video caught her entering the store after parking her vehicle out front in the fire lane. A clock on the video showed the time as she was tracked through the store to where she picked up a $17 box of diapers.