"We are sorry to hear that," the company said in a widely shared response on Twitter. "Are you still in the elevator?"
Thankfully, the answer to that question was "no."
"Oh my, thank you for this but I was trapped months ago," Carpenter responded. "Like last February. Thanks for checking...?"
For it's part, Amtrak said its response came after someone retweeted Carpenter's February message.
"Wanted to make sure," the company wrote. "Glad you're out."
Response to the gaffe was swift and merciless.
For the record, Amtrak did respond to Carpenter's tweet in February, about 20 minutes after she first reported getting stuck. The company apologized to Carpenter on Thursday for the mix-up and offered her a free ride for her trouble.