Now that we're done travelling by car, I keep the bottle in my car with water (it's been cold so it says cool). The only "issue" we had is that for some reason it squirts water out randomly and we got our dog's face wet and the backseat wet.
If your dog is a sloppy drinker like mine I recommend you have a backseat cover in your car! You can see why in the picture.
Lastly, a tip: if your dog doesn't finish the water, tilt the bottle up, leave the button pressed, and the water will go right back i...