First of all . . . Forget about Chrysler doing anything. You have a 13 year old car that was built back when Mercedes owned Chrysler. Now Fiat owns Chrysler. You bought a wonderful car that looks great and is LOTS of fun to drive BUT all Crossfires have some issues that will require attention. You found one of them . . .
You can fix your ignition key problem at no cost . . .
Look here:
Sticky Ignition Key Fix - years 2004 T0 2006 only (PDF)
Sticky Key Fix - Big Daddy video