A 24-year-old West Covina woman sent to Idaho on a routine business trip survived a deadly shooting at a newly opened In-N-Out in Twin Falls — another reminder that no corner of America, not even a fast-food counter in quiet Idaho, is immune from the violence eroding basic public safety.

Three people are dead and seven wounded after 24-year-old Chad Williams walked into the restaurant around 2:30 p.m. Saturday and opened fire. Williams then turned the gun on himself. One of the dead was a female In-N-Out employee, a fact confirmed by In-N-Out President Lynsi Snyder, according to CBS News.

The West Covina woman, whose family asked she not be identified, had been sent to Twin Falls as part of an "all-star team" to train new hires at the location, which had been open just over a week. She was working when gunfire erupted.

Her parents, Nikki and Michael Ahern, learned about the shooting the same way most of America did — through a news alert on their phone. The Citizen App pinged them first, CBS News reported. Knowing their daughter was inside, they waited for her call. It didn't come — because In-N-Out's company policy requires employees to stash their phones while on shift, and she had fled without hers.

More than 24 hours later, her phone was still part of the crime scene. Her parents had no way to reach her.

"All she could get out was 'mommy, mommy, mommy,' crying, 'mommy, I'm alive,'" Nikki told CBS News. Michael said his daughter confirmed police had arrived and she was safe, but told him a coworker had been shot.

"She's like, 'I'm just sorry. I had to run. I had to get out. Everybody was getting out, and I would just push the button, and I had to crawl out. I'm hiding. I'm hiding next door,'" Michael told KABC.

The family's grief extended beyond their own daughter's survival. "I feel immense, just sadness in general, just for whoever that is," Michael said.

But the Aherns' frustration quickly turned to In-N-Out itself. The company, which dispatched their daughter across state lines to staff its newest location, apparently had no protocol for alerting families during an active emergency — or if it did, it didn't use it.

"There's got to be a protocol," Michael told CBS News. "Like, you have an emergency contact list, right?"

"Being able to like, be in contact with your family, like you're taking my family out of state to better your business," he told KABC.

Both KABC and CBS News reached out to In-N-Out asking about emergency protocols and what resources are being provided to employees who were on scene. Neither outlet has received a response.

The family said they were told In-N-Out is flying their daughter home, but as of the reports still didn't know when — and hadn't heard directly from the company with updates or support. CBS News reported she was expected back in Southern California on Monday.

Idaho State Police have released few details about Williams or a possible motive. Neither outlet reported on his criminal history, if any, or how he obtained the firearm.

A young woman went to work and ran for her life. Three people didn't come home. And a company that sent employees across state lines couldn't be bothered to pick up the phone.