Lucy contracts to buy six cases of vintage wine from Mountainside Vineyards for $$1,200.$ The contract states that delivery is to be made at Lucy's residence $"$on or before June $1,$ to be used for niece's wedding reception on June $2."$ On June $1,$ Mountainside's delivery vehicle is involved in an accident, and no wine is delivered to Lucy. On the morning of June $2,$ Lucy buys the wine from Nature's Vintner. That afternoon, just before the reception, Mountainside tenders delivery of the wine at Lucy's residence. Lucy refuses tender. Mountainside sues Lucy for breach of contract. How is the court most likely to rule? What is the legal reasoning?