[Rockin Robbins]

Just remember that hearing their sonar pinging away says not a thing about whether they have detected you. You are MUCH more apt to be killed by overreacting to hearing pings and panicking than you are if you carefully evaluate the situation and act cautiously.

One thing you know for sure. Distance also keeps him from detecting you. Make some! If a single escort is pinging, he isn't listening. Hit the jets and run for another hidey spot just for kicks. Keep him on your stern and break contact. You want to get to the surface to maneuver and recharge batteries as quickly as possible.