On the way out of town today, my info center went crazy with notifications. One being "service electrical system" & "engine hot - ac off". When I got out the car & looked under the hood, the serpentine belt was shredded. Had to get car towed & since it's Thanksgiving, no one can let me know what's wrong until tomorrow. My car is a 2003 Cadillac cts. Can someone maybe tell me how much it would be to fix this?