Florida doesn't have any special rules for people arriving from the PNW (or any other, particular, states for that matter). You weren't coming from Canada, were you? If not, then the rules are pretty simple and straightforward. They are clearly spelled out on the websites of the Dept. of Revenue and the Dept. of Motor Vehicles.
I don't begrudge anyone who makes a bit of money by helping people to file their paperwork. Nor do I criticize anyone who prefers to pay someone else to take care of that sort of thing for them. Still, I have to agree with FF that, at least in Florida, this is a very simple process.