In the alternative, you might consider mailing your gear. I mailed my stuff to my rental car company on a trip to Bozeman a couple of years ago (shout out to the amazing Phasmid (now Explore) Rentals out there). Hertz probably wouldn’t take it but a local fly shop might. It allowed me to bring a couple of rods and a little more gear than I otherwise would have while being cheaper than if I had to check it.