@prettyfarr,
If I were the employer you were applying for and you told me this in the interview, I'd just stand up and thank you for your time before heading out. I wouldn't want an employee with that attitude anywhere near the customers who might require help in a second language to better understand the details about a product or transaction with the store; especially in an internationally known tourist area as Florida.
If you've ever traveled to other countries, did you insist the clerks in the shops you visited speak only in their native language to you, or did you ask and expect that someone in the store be able to help you in English?