Barry Marts has been emailing me regular updates on the Loggerhead Shrike in Hagerstown.  Apparently he has observed the bird at least twice this month, once on Feb 5 and again as recently as last Wednesday.   
I went out there on Saturday and searched the whole area on off from 2-5 PM with no luck.  However, if others are still interested in seeing this bird, I'd recommend giving it a try, as undoubtedly it hasn't left the area and probably is ranging widely for food.  Continued updates may help provide additional info on its whereabouts.
Ross GeredienAnnapolis/Edgewater