I'm on the phone with Petco right now. I paid with Paypal, they are saying they have to get a manager's approval to release the funds back to my account. If you used Paypal I'd definitely call. She stated there was a "hold" on the funds and they won't be released until the individuals call.
At the end of the conversation I asked her when I would get my money back, she said "as soon as they read the email to approve releasing the hold." She said it should happen sometime today. Just thought I'd update those of you that paid with Paypal.