Car Rental Question

This is about as far off topic as it gets, but here goes...

I just booked a car rental from carrentalexpress.com for $22 for a week. This rate is clearly wrong, because if I added an extra day, it quotes "1 week @ 204.00 and 1 extra day at $40" so my question is, when I show up at the rental agency with my confirmation, can they tell me my rate is not valid?

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Thanks for your replies.

This is what the reservation says:

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Rental Location Orlando International Airport
Return Location Orlando International Airport
Pickup Time Mon Jan 01, 2007 @ 09:00 am
Dropoff Time Sun Jan 07, 2007 @ 05:00 pm
Vehicle Standard Convertible
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Credit Card Type Visa
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1 week @ $ 22.00 = $ 22.00
Rental Rate Charges = $ 22.00
Surcharges = $ 14.00
Subtotal = $ 36.00
Miles Included = unlimited mi
Vehicle License Fee = $ 13.93
Airport Access Fee = $ 3.13
Sales Tax = $ 2.54
Estimated Total = $ 55.60

All rates in US Dollars
Extra miles = $ 0.00 / mile

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AFTER HOURS
Open 24 hours.

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Yeah, I'm not gonna lie, I'm a bit nervous. There are 6 of us going down, but renting two of these $22/week buggies was cheaper than 1 minivan, especially since we have to pay under 25 fees. The only substancial problem will be if they have absolutely no cars, and we have no way to get from Orlando to the curise terminal at Port Canaveral :-o

Thanks for your help

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