Some of the above samples are on extreme side like renting a car at peak of the season in Florida.
I rented cars several times on West coast and never had any issue.
Airports rentals charge extra for the location, at least in SF, but in strange twist of rules they offer unlimited mileage, while others do not. Most of companies will pick you up and bring to the office. Again, not at the peak of the season.
The only issue was when I was renting cheapest car for long drive and salesman talk me into upgrade to a car with cruise control. Guess what? The upgrade did not have CC neither, but they did not charge me for upgrade.
Beware about "in state" specials. With modern technology the office can track your travel and when they catch you breaking the agreement, the special is void and hefty penalties come to the play.