1) check your compression
2) drop your oil pan and using a shop stethoscope probe around the oil pump, crank, etc while someone turns the key to find out what is going squeek.I get the queasy feeling that you spun a shell causing the oil pressure to fall causing your pistons to "smear" from no lubrication resulting in poor compression. I hope not -but..... if the car lost power on the expressway - it sounds like your compression was failing from lack of lubrication until she could go no more. You might want to smell the exhaust while cranking the engine to see if you can smell raw fuel meaning that the injectors are supplying fuel. Good luck - I pray I am wrong.