Just wanted to update now that Stella the dog and I arrived home from Chicago late last night. Now that the road trip is fresh in mind, I can give a clearer idea of what works.
First, packing snacks, including something that resembles lunch, and plenty to drink for everyone, REALLY makes a big difference, both for time needed to be away from the vehicle and for arriving at your destination not feeling gross from gas station/truck stop/fast food.
When we left for Chicago, our weather wasn’t god awful (low 80s…but VERY stormy). Yesterday was hot and humid all the way, though. Stella was always comfortable when I left her in the car WITH THE WINDOWS ROLLED DOWN (she got a little more hot yesterday and drank more than when we went out). Like I said earlier in the thread, she is a very seasoned traveler and I trust her to stay. Not necessarily the safest thing to do, but I was usually no more than 5 minutes (if that) and I choose busy truck stops and gas stations over rest areas.
I think for a young dog or one not as trustworthy, a good solution may be a crate (a full wire one, though) where they can get a good breeze. Some say that’s a safer way of going, anyway.
When you get the dog out, use a collar or harness that they CAN NOT SLIP. I never take Stella out of the car without a choke chain, even though she is very good, doesn’t pull, etc. Truck stops and rest areas along busy highways can be a little overwhelming with noise and traffic, so I like knowing that if she gets spooked, she can’t pull out of her collar. This is also why I prefer to stop at truck stops or gas stations…because they are OFF the highway. I get squirrely with vehicles going 80 miles an hour with only a hundred yards or so of open parking lot between my dog and them.
Having snacks should help keep you from having to make LONG stops. I drink a ton of water (otherwise I get to where I’m going feeling like crap), so I DO have to stop frequently. But most are quick pee breaks with MAYBE a minute or two to grab something caffeinated or a quick snack (the further into the trip I get, the more I need something sweet). Every couple of stops for me, I get Stella out for a stroll and a pee of her own. Let’s us both stretch our legs, too.
If you do stop for a meal or just need a break, try to pick somewhere you can sit outside with your dog. Stella and I did this last night coming home.
We traveled 1500 miles to Chicago and back and spent about 30 hours traveling. It was easy peasy.