When an acronym/initialism is ambiguous, you can repeat the last word to make what you're saying unambiguous. ATM machine is easily distinguished from ATM mode.

When an acronym/initialism is ambiguous, you can repeat the last word to make what you're saying unambiguous. ATM machine is easily distinguished from ATM mode. Similarly, you could say a LEO orbit to distinguish from a LEO officer. No matter what, it's not nearly as bad as "The Los Angeles Angels" :-)