"I wouldn't presume to tell you how to plan out your own ways of protecting your family, Stark," Phil says, letting out a small sigh. He'd predicted this reaction, hadn't he? Stark would think that Phil and SHIELD would try to worm their way into their personal lives, maybe even drive the family apart in the name of safety.
When really, the less he had to deal with Stark, the better.
"It's a code, for a specialized rescue unit of SHIELD," he said, his tone softening. "It's for if your family is missing or needs help. Calling it in deploys a team from SHIELD, who's sole goal is to retrieve them into safety. And yes, they will go to Latveria if necessary. Because as much as you think the the opposite," he put his sunglasses back on again, "SHIELD is interested in keeping the Stark Family safe. Happy Birthday."