First southbound train was 101 Wednesday and it took well over 24 hours and three crews to complete the trip. I believe they had a police vehicle with RR police officers protecting each crossing. I think most of the signal system was out aouth of Saybrook which is not far south of St. Augustine. They had a monster train too.
Tri-Rail resumes Saturday, September 16th with a regular weekend schedule, all Tri-Rail rides are free all day Saturday, Sunday and Monday. Haven't checked Amtrak as yet.
Later Friday evening according to Amtrak web site trains 98 and 97 remain cancelled but the Auto Train 52 and 53 will resume Sunday and Monday. Recovery is slow but it is in the works.