I've got a cat, she's not been a problem. She's my kid with fur. She comes on what I call 'random picnics' in Yellowstone National Park with me, where I work. You can bring your pet in, they're just not allowed on trails. So on moderate-temperature days, she comes right along with me. If I walk a trail, she waits in the truck where she has food & water, a fan and a small litter-box. There are places by the truck I can let her out (on a harness and leash) to sniff fresh air, wander a bit, chew on grass. She loves that. She doesn't know she's not allowed on trails, it doesn't bother her. She's come to Old Faithful with me, a picnic area between Roosevelt and Cooke City, Norris Geyser Basin, etc.
She saw her first bison a week ago up close, a few were wandering on the shoulder and meandered right by the truck. Her little eyes got real big, wondering what those huge, furry moving things were!
I haven't foregone a single thing in having her except for being less lonely. Set your vehicle up to be a comfortable waiting area; that's really what the need is. Roof vents are great as are battery fans. Don't think about all you can't do, think about all you can.