You can read about the Pet Relief Station here. You will find this description:
The 75-square-foot space includes fake grass and a hydrant, two deodorizers, a handwashing station and complimentary baggies. Maintenance workers clean the restroom twice a day.
You will not find a photo and I am going to scan social media for one. Oh my, here’s a snapshot:
Interesting. I never thought about service dogs traveling and having this problem. It’s a great idea though.