The Acela Express business class cars have one or two single seats for (in Amtrak's words) passengers with disabilities, and they are marked with a wheelchair on the seat map in the Amtrak app.

I'm not looking to take away a seat from someone who needs it, visible disabilities or not (and I have a parent who uses a wheelchair, so I fully sympathize), but if the seats aren't booked and the train is departing, they'll just sit empty.

Is there any way for a non-disabled passenger to book the wheelchair seats--for example, 30 minutes before departure, can I book one in the app if it's still empty?

Thanks.