One time I was at a restaurant and I noted that it didn't have a changing station. Sure enough, during the meal my kid needed to be changed. I asked my wife if her restroom had a changing station, and she told me it did.

So I took my kid up to the host stand and asked to talk to the manager. I politely explained that I needed to change a diaper but there wasn't a changing station in the restroom so asked which table I could use, or if I should just use the bench in the waiting area. Manager got flustered and had a waitress check if the women's room was empty and then stood outside the door while I changed the diaper.

About a year later I happened to go back, and I did notice that the men's room had a changing table. It's a small thing, but I felt like I won one.