If you want to go on a ride that your service dog can't go on, you can use Rider Switch. Traditionally used for small children, Rider Switch is Disney's program where one adult can go on a ride while another adult in the same party stays back with a young child. Then, when the first adult is done riding, the child is given to the first adult and the second adult is permitted to ride. The Rider Switch program is now extended to service dogs. So, one adult can go on the ride first while a second adult stays back with the service dog. Then they switch.