Yikes, she got a bunch together, didn't she? I think most of prefer to stagger the shots a bit to avoid reactions. Also, corona is a vaccine many of us don't give for fear of reaction. You might want to take a look at Dr. Dodds vaccine protocol which has been adopted by twenty-seven vet schools.
http://www.weim.net/emberweims/Vaccine.html
To answer your question about grooming, it's best to wait a full two weeks after those final shots for full immunity before taking Shirley to the groomers, pet shops, etc.