I'm very happy to hear that you like your new vet. Hopefully the paste will fix Joe's digestive track and he will be back to normal by next week.
I'm glad too that Pixie didn't get sick in the car. Some dogs do better if they can see, kind of like humans on a boat -- looking at the horizon can help prevent sea sickness. You might try a car booster seat for Pixie in the future. Of course, being on mom's lap probably helped too.
Max cried in the car his entire first year.
Vet care is expensive! Hopefully your babies won't need to go back for awhile after next week's follow up.