Don't ask don't tell?
They want your money so won't infringe your rights?
(Yes, I know, they're allowed to do that 'cause they're a private company. You know what I mean.)
When you reserve a room, under "comments" ask for a 2A friendly room.
Worst case, email & ask if they prohibit the peaceful exercise of civil rights.
Or just carry & let them try to tell you to your face that they won't accept your money & want you to go somewhere else.