Forum:2 questions about Season 2 (Theon&Littlefinger)

I have 2 questions about Season 2 that are bothering me.

Firstly,

Wouldn't there be repercussions for Littlefinger from Cersei since Littlefinger has not found Arya? You do remember Littlefinger getting the power is power vs knowledge is power confrontation from Cersei? Was the Tyrell House unification enough? I doubt it because of her feelings for Jaime. I would like to hear your thoughts on this.

Secondly,

How could Dagmer and the rest of Theon's army get away from Winterfell if the city was surrounded by 500 men? Only Luwin and Theon supposedly knew of the tunnels I suppose. The city was burned so did the Ramsay Snow army get defeated? I highly doubt that, but that is the only expectation given the city burning and Bran and the others fleeing North. Wouldn't they have ben greeted by the outside forces? What happened there?