Most vets don't even run these emergency clinics; the vets just work there and don't make the rules. I for one am glad these 24 hour clinics exist, and lots of people wouldn't pay, if they weren't made to, and the clinic would have to close. Its already happened with a number if human hospitals. When someone purchases a dog it comes with a responsibility of taking care of that pet, and a plan must be in order for emergencies. YorkieShadow posted a some information about Care Credit and a link, on this thread, post 1:
Care Credit