It sounds like a lot of people are staying in place to ride out the storm. May I ask why? I don't think I'd stay with even a Cat 3 predicted to go over my home!
I'd guess it's down to a false sense of security.
Not having gone through any hurricane before, let alone one that looks like being a Cat 4 or 5.
Not understanding what a storm surge of X feet really means in their neighbourhood and for their property if they're along the water or close to it.
Not understanding what damage winds of 150mph or greater could do.
Seeing another city that you don't know going through it on the TV doesn't really prepare you for the reality of living through something like this.