Ya, getting self driving cars for the automative industry is the equivalent of rockets landing themselves for the space industry. How do you compete with that?
There's always a way to compete; it's a matter of finding out what people will pay for and people have a long history of paying premium prices for premium services.
Find your niche.
I'm not really sure any of those is intractable for self-driving cars; opening doors is trivial.
Some people will always use the valet even if free parking is available. Those are some of the potential customers I see.
In a general sense, I don't care about the specifics, I just find the thought that you can't compete with something to be intellectually lazy. Discussing the automotive industry at large is diverging from the point I was trying to make.