Just tested my 2011 Crown Vic. 215 ma (0.215 amps). This seems high to me also. This was a few minutes after shutting the door and letting the dome lights go out. I suspect it may get less if the car sits idle for a long period of time (hours).
It does not surprise me, however, that a 2011 draws more than a 2005...they seem to be putting more and more electronics in newer cars, whether you want it or not.