There is a Petsmart near me and they have the vet program too. I've never used that program. I've always took my dog to local vet that is not open 24 hours.
After Macy got sick with collapsed trachea and it was 2 in the morning when she got sick and the vet was not open. We had to look through the phonebook to find a vet place that was open 24 hrs. After Macy got better, I decided to transfer her from the vet we normally went to to the one that is open 24/7.
The reason I decided to transfer her is because if something like this ever happen again, I won't have to worry about getting all her history, etc., because they'd already have it and would be quicker and easier for Macy.
I hope that makes sense. Just some advice for you.