So I recently did a airport rental at fox rental car. If I pushed back the drop off time to an additional 4 hours they would have charged me the same price but I thought I already built plenty of cushion in my time. Well real life happened and I ended up pulling into the rental place a few minutes past the scheduled drop off time and by the time I checked out it was a good 10 or so minutes. They waved me through with nothing to sign and I assumed all was good until I see an extra day late charge on my invoice. I got them to reverse it but still, don't be like me and just have your rental set with the latest drop off time as possible as long as it books as the same price.