It’s back! This time the Chrysler folks brainstormed and then took the advice that Dan posted here in Comments. They replaced the camshaft and crankshaft sensors. They kept the car and drive it all over. One guy took his life into his hands and drive it to Burlington. It kept on working. So far so good. But then it never stalled for them in the past either.
I drove the PT home in the rain and it was great. Just like old times. Have to wait for a warm clear day to really test it out. But I feel positive.