We were at OKW when Floyd went thru (a non-event, as it turned out). The onsite preparations were impressive.
At that time they did close parks (only AK was open and available for onsite guests- and they even honored our free
DVC passes). At OKW they issued flashlights and storm preparation suggestions to all guests (fill the tub with water, etc.)
Few restaurants were open, but each resort had some level of food service. TV coverage was 100% devoted to storm coverage- which did get a bit old after awhile.
With this type of storm, the immediate effects are fairly short lived since it passes thru so quickly. There was a short while that the airport was closed (so some guests were stranded and some couldn't arrive), but it opened back to full capacity very quickly.
Everything in the parks that could move was tied/strapped down. Any hanging signage was secured, umbrellas were stored inside CoP, food carts were strapped to the ground, a small army of CM's scurried very efficiently about as these preparations were made.
Parks closed early the day prior to prepare and remained closed the day of, but they did open AK when it was apparent that the storm missed WDW. Many CMs who lived on the outskirts were affected however, thus the reason for 3 parks remaining closed and cut-back of many services.
We never felt in any danger and were duly impressed with the efficiency displayed by the Disney CMs.