WX Man,
The greyhound bus stop is down Davis Bld is my memory serves me correctly, I remember crusing past it on my bike a few times. Now the Wellsley Inn is usually the hotel that NAC send their students on arrival, and that hotel is located at the end of Davis.
Now, how much luggage will you have? Are you taking everything but the kitchen sink or travelling light? It is walkable, but not with 10 suitcases. It maybe well worth asking NAC to arrange a Taxi to meet you at the bus stop.
As G SXTY says, there are not many nutters around, only OAP's. The only Aligators you are likely to encounter are when flying into Marco Island, they like to lie on the runway when you are practicing your touch and go's.
Have a good time.