So, I have an AVIS rental at MCO in a couple weeks. I originally said I was going to pick up the car at 6pm. The airline has since cancelled and rebooked my flight so I'm now arriving 6:45pm. What happens if I pick up the car at 7pm+ instead of 6pm as originally planned?
I tried to rebook and the price difference is very, very high.

Additionally, if I pick up the car at 7pm on pickup day, does that mean I have until 7pm on my return day to count the 24 hours period? or does my time start at the original 6pm expected rental time?