Per a group I'm part of, NS has started annulling trains temporarily, but it is traffic-specific (as one might expect). The two Fort Wayne Line/western Pittsburgh Line locals are still operating for now (as are the Class IIs and IIIs they interchange with), but the two dedicated autorack movements, 18N and 27N, are annulled and the remaining output for 27N is moving on M1V. When I went railfanning earlier this month, before the case count accelerated, NS still seemed to be running the same amount of intermodal and manifest movements (and I saw more coal movements than usual), but things likely have changed since then.
The Port Authority has changed about 5/8s of its bus service, but has not curtailed light rail service as of yet.
