Former President Joe Biden has been making weekly trips via Amtrak to his government-assigned office in Washington, DC, though little is publicly known about the nature of his work there.During one of these trips, an Amtrak passenger expressed frustration to The New York Post, saying, “He was talking in the quiet car!” — a major etiquette breach for regular riders.The 82-year-old, who frequently travelled this route to Delaware throughout his 36-year Senate tenure, seems unfamiliar with current cafe car selections. When he requested ice cream, his preferred treat, but had to settle for a muffin instead.The Acela’s “quiet car” is positioned second, after first class, where conductors and passengers strictly maintain silence by hushing violators.Another passenger who observed Biden conversing in the quiet car defended him. “If he’s talking, it’s because he’s constantly approached,” the individual explained, noting that whispered conversations are permitted.Fellow passengers have documented his journeys through photographs, including a May 8 brief conversation with CNN’s Dana Bash.Last week, when his Amtrak train halted due to track problems near Baltimore, passengers gathered around the Democrat for photographs.Biden, who abandoned his re-election campaign last year following allies’ concerns about his cognitive state, visits DC approximately weekly for meetings, according to the Wall Street Journal’s report last month.According to the New York Post, various former Biden White House staff members express curiosity about his activities at his temporary office near DC’s Union Station.A person knowledgeable about Biden’s schedule indicated he holds meetings with current and former staff, and communicates with Congressional members and Democratic leadership.“He’s also been attending events which are sometimes coordinated through the office,” the person said.“He was just in Galveston, Texas, to attend a Juneteenth service as a recent example. Separately, he’s working on his book and library and foundation phases of post-presidency,” the person added.