so the bag of hops has sunk and is sitting at the bottom of the fermenter? or is it still floating, because there aren't enough marbles to fully sink it?
not sure what you're worried about - cold crashing with hops will not rouse the yeast. it's not like the hops are going to nose-dive and violently crash into the yeast cake. they will sink slowly over several days. don't worry about the hops, just cold-crash.