2000 Mercedes CLK key stuck in ignition



I have a 2000 Mercedes CLK 430 Cabriolet which was in a body shop for some work. The shop has informed me that the key - one of electronic kind without an actual metal blade - has become stuck in the ignition and will not release. The ignition will still turn and the car will turnover just fine. The key also works to stop the engine - it just won’t come out of the ignition slot Ideas?