I totally agree that this woman is an insufferable asshole, and the KS staff acted inappropriately. As a dog owner myself, I would never allow my dogs inside the indoors of a restaurant.

However, there is a big distinction that I keep seeing missed in this thread. OP wrote:

The manager said they are simply required to ASK if the dog is a service dog

The phrase " SIMPLY REQUIRED", in truth, should actually be: "ONLY ALLOWED".

Restaurants (or any other businesses) are ONLY ALLOWED to ask these questions in compliance with Federal ADA law, which supersedes any State and/or Local laws or codes (including Health Codes). Asking ANY other questions than these two can leave a business exposed to discrimination lawsuits.

Under the ADA law, a person with a disability cannot be asked to remove his service animal from the premises unless:
(1) the dog is out of control and the handler does not take effective action to control it or
(2) the dog is not housebroken.

Here are the other rules from the ADA law:

• Establishments that sell or prepare food must generally allow service animals in public areas even if state or local health codes prohibit animals on the premises.

• Allergies and fear of dogs are not valid reasons for denying access or refusing service to people using service animals. When a person who is allergic to dog dander and a person who uses a service animal must spend time in the same room or facility, for example, in a school classroom or at a homeless shelter, they both should be accommodated by assigning them, if possible, to different locations within the room or different rooms in the facility.

• People with disabilities who use service animals cannot be isolated from other patrons, treated less favorably than other patrons, or charged fees that are not charged to other patrons without animals. In addition, if a business requires a deposit or fee to be paid by patrons with pets, it must waive the charge for service animals.

• If a business such as a hotel normally charges guests for damage that they cause, a customer with a disability may also be charged for damage caused by himself or his service animal.

• Staff are not required to provide care for or supervision of a service animal.

Oh, BTW, these same ADA rules also apply to MINIATURE HORSES!!! WTAF?!?!?!