I’m sorry that the store has not been clear on this matter. The ADH terms and conditions specify that spills are acceptable and that as long as it is not submerged in a liquid it should be covered. I recommend having Geek Squad® send it off for repair under your ADH service plan.
However, I must point out that a 100% determination can’t be made until they physically have the unit in hand.
If you need additional help after it is sent out for service, feel free to ask.