Yes if credentialed
Yes, but it has to be vested and you should have your certificate.
Costco is normally a no animal policy, but it has been modified to allow admittance to service animals, if the staff can verify by clothing, equipment, other visual evidence, or by some demonstrated evidence (demonstrate a task the animal helps with). Emotional support animals are not considered service animals by the ADA, South Carolina, or Costco.
Yes, as stated above
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