I watched a guy get kicked out of the Costco food court area because he kept saying his dog was an "licensed" ESA. The Costco manager busted out a little card with the relevant federal laws for a service animal and listed all the rules the dog was breaking by lunging at people, not staying under the table, and barking it's head off at a real service animal that was just sitting calmly under it's owners table like nothing was going on around it.

Even if your dog is truly a licensed and trained service animal, but you've allowed it to continously break all the rules it's supposed to follow in a private business. They can still kick you out if your dog doesn't behave like it's supposed to be behaving. That's why it's a big no no to interact with working animals with their vests on and for owners to let their working animals to break the rules repeatedly by misbehaving and never correcting them.

People who do that I find so annoying and honestly pathetic. It’s like they think they’re better than everyone else and can do whatever they want.