I redeemed points for a Coast Starlight trip for my Mother a few weeks ago. I chose the $9 travel insurance option during the E-ticket purchase. The $9 option show on my reservation confirmation email. As I discussed in another thread, the train was turned mid trip due to the "Carr" forest fire...
I recently visited the Amtrak car rental and hotel reservation page in conjunction with a train trip to Portland, Oregon's Union Station;
https://www.amtrak.com/deals-discounts/complete-your-trip-with-hotel-car-rental-insurance-more.html
Amtrak's car rental page only lists the car rental...