I'm very sorry about that, Helen.
Possibly, some of the damage could possibly have been due, to dessication from high winds. Unless they could have used a helpful rinsing off with a hose.
Hopefully by now, you've received enough adequate precipitation, to rinse out any sodium chloride accumulation.
I'd be reluctant too, with the prices of some Peony, especially these days
.
I'd just never experienced anything quite like that before, with any Hurricane.
Although, I may have attempted to rinse off the plants, as I knew I could see salt spray had accumulated & dried onto the windows.
While I had started to wonder, if it may have possibly been caused from winter "salting"
of the road.
