Dollar Tree

There is an employee that has german shepard working along side of her while on duty. If its a service animal how do you know she has the proper certificates. Per virginia law specifically states that providing companionship, emotional support, well-being, or comfort does not qualify as performing work or tasks for a person with a disability... Under the ada and virginia law, owners of public accommodations are not required to allow emotional support animals, only service animals... How about customers that are allergic, afraid, etc to dog or animals... What happens then?