I would call them first, but i would assume they would be available for a walk in anytime they are open within reason. Like not 5 minutes before they close or other comon sense things
Basically from store open time till salon close time. But people will always appreciate coming in no later than 10min before the salon closes. You should also call ahead since rabies in a necessity and they can check if your dog is still up to date so you don't waste a trip. (Rabies is required at 4 months at petsmart)
Depends on current scheduled appointments. They have an online "schedule an appointment" function that may show available times for this location. I've been lucky a couple times and just walked in, but call ahead or make an appointment to be sure they can accommodate your needs.
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