I don't know Neil and have no particular axe to grind but I would think that responding to customer inquiries would be just about the top priority I would have as a small business owner. Even if only to say "I got your message and I'll be back to you shortly."

I know he's recovering from the hurricane and I feel bad for all the people affected but if I were trying to line up an excursion and didn't get a reply from a vendor, I'd be looking at other options.