Sounds similar to the beginning of a movie called "Office Space" (the stop and go type traffic). Eesh, not sure if there are icy conditions where you are at the moment, but, that would also increase the danger.
I saw the announcement as well and I agree with you that Key may be onto something. Still keeping an eye out, have 22 pieces of evidence so far, but, nothing seems to make sense at the moment. Hopefully, something appears soon.