Courtesy Alexandria Police Thieves in Alexandria have made off with over $60,000 thanks to a skimming device that was installed at an ATM at the Wachovia Bank branch at 3624 King Street, Alexandria Police say. The device was discovered by an ATM technician on Sunday, Feb. 28. Police say the engineer took photos of the device and then went inside the bank to report it. But by the time he came back, the device…