But Frost's account of what happened in-between differs sharply from authorities and those who worked in the office.
The Orange County District Attorney is prosecuting Frost on charges of strong-arm robbery, and Frost says he refuses to plea-bargain because he doesn't believe he's guilty of a felony and never intended to rob or threaten anyone.
Frost says he still is waiting on help from the VA and pointed out a construction trailer he lives in as a favor from a friend. He said he suffers from chronic pain, post-traumatic stress disorder, difficulty walking, and other ailments, and can only do the occasional odd job. He says no one offering services has understood what he goes through.
"They don't factor in what circumstances someone could be in," he said.
According to police reports, District Director Kathleen Hollingsworth, who was handling Frost's case, told police she felt intimidated by the 250-pound Frost over a few months as he demanded more actions from the office.
In Frost's eyes, workers at the office never tried to help him.
"They were arrogant, uncooperative, showed little respect, and were not really concerned about my issues," he said. "What was so hard about these requests? That's what blows me away."
The tension came to a head May 15, witnesses told police. That day, Frost came into the office and argued with Hollingsworth until they and another staffer met privately in Rohrabacher's office. Once there, Frost asked for all his files back and grabbed a thick manila folder off the desk.
Witnesses said Hollingsworth tried to take the folder back, but Frost wrested it away, striking her with his elbow and hitting her with the door while running out.