Just Google the words Chrysler Stuck in Park. You'll find that the 300C and to a lesser extent the Dodge Charger has this.

I just did myself with my 2004 Crossfire. Started to have the trouble last night but it eventually let me shift out of park. The car runs fine and no electrical problems.

Tonight I needed a tow home from work as the shift lever would not budge!

The tow truck driver told me about all the Chrysler's he's had to tow recently with this same issue.

I think a recall is in order!