Sorry forgot to answer this. It cost $20pp incl tax.
Just got back from airport, collected car from Alamo. A better experience than last time we rented from them. Tried to get me to upgrade, rent GPS, buy roadside Assist but no pressure accepted no 1st time. I did have to prepay for tank of gas, he said it wasn't as option with Expedia bookings, I have still to read Expedia T&C's to comfirm this but at $2.88/gal its a very similar price to local gas stations($2.76 is cheapest around) so didn't mind pre-paying.
Got choice of cars from full size line, majority I would class as intermediate with just 3 or 4 at the far end full size so anyone collecting check the whole row don't just pick from 1st few. I went for the only Dodge Charger there, a bonus when I got in, it only had delivery milage on clock.
Now planning our extra days, Tommorow is a Geocaching meet at Boardwalk so might go there, then in the evening another Mardi Gras parade at Universal with Chicago in concert, should be good.