Hello all,
Teung, Of course the airplane can do it !
The danger comes from the ground : LVPs (Low Visibility Procedures) HAVE to be in effect in order to free the ILS signal from any parasites that may deviate it : for example, the Runway Hold short positions are different when LVPs are in progress (further away from the runway, you've seen those cat II/III stop signs right ?) so that waiting aircrafts don't interfere with your signal in the last 100 feet.
so in case of emergency, if you want to do an autoland make sure the tower knows about it ! (there might be a whole lotta fire trucks and ambulances waiting for you there, well intentionned but DISRUPTING YOUR ILS SIGNAL ! !)
cheers