Missoula cooler rental

[country_20boy]

I'm flying into Missoula in July, headed to Glacier National Park and Banff, and was looking to rent a yeti or similar cooler, but I can't seem to find anything on my Google search. I found some rental places in or near GNP, but would rather pick it up on my first day so I can fill with groceries while in Missoula.

Thoughts or suggestions?

Maybe someone here would just loan me one.....