Try out my plugin, it is designed to fix the "stuck in combat" problem. Get the plugin version that matches Honorbuddy version you are using. If you want it to feign death instead of engaging targets you can attempt to modify the source code:
// In combat but don't have a good target
if (Me.Combat && !IsGoodTarget(Me.CurrentTarget, 40))
{
SpellManager.Cast("Feign Death");
return;
}