If you are fishing for wipers, it is my understanding that they are difficult to catch after dark--period. If, however, you are fishing stripers as you state, I would give up on the live bait at night (at least that's what I would do in Indiana) and start throwing jointed Rapala Shad Raps, Hopkins spoons, and J5 Shad Raps. You could also try 4" curly tail grubs on white jigheads. Find areas that offer rocky areas for the baitfish to hide in. The stripers seem to like raiding those areas at night. They seem less inclined to chase shad once the sun sets.
Keep Your Tip Top Up!