I reserved a car on Thrifty.com from Friday late morning to Tuesday afternoon because it gives me a rate about $70 less than if I had reserved it until Tuesday early morning when my flight actually leaves at 7 a.m. With the reservation set up like that, I got the weekly rate instead of the daily rate.

Because of the early morning flight, I'd need to return the car about 10 hours earlier than the stated return time in the reservation. I've never rented from Thrifty before and I'm not sure what will happen in this situation. When I return the car in the morning, what happens to the rate -- will they charge me an early return fee, adjust the rate, or let me have the original quoted price with no problem?