After reading another pally exploit I decided I'll go ahead an post this. Not 2 huge an i'm sure most holy paladins have found this out by now but seeing how its unintended it's an exploit.
An here it is..*drum roll*
You can cast Light of Dawn while silenced/Lockd.
*claps*
When I do get lockd out I try an just light of dawn as many people as I can because you get healed by Protector of the Innocent