Susan, I hope you have the answer to your question by now! I don’t have any experience with a Jeep Patriot, but thought I would mention that some person working at the rental agency might measure the available linear distance behind the driver’s seat for you. My sweet wife called dealers and got them to measure all different kinds of vehicles before we went to look at the Subaru Forester. They were all very willing to help, thank goodness!
Best thoughts,
Balfour