yuck, lobster...bisque

yesterday, i tried the lobster bisque sold at costco. i wanted to throw up with every spoonful. the creamy, tangy, mustard concoction just didn't jive with my palate, no matter how cultured i think i am. i got fed up and dumped what was left in my bowl, which pained my thrifty heart to no end. can i return the rest to costco? i understand they have a very customer-friendly return policy :)