Your right Uber doesn't have physical offices. They had a place in Houston a few years ago i remember, seeing dozens of drivers trying to get in to talk to someone. But one of the drivers said they are not public offices and we can't get in to talk to anyone. Sad!
2.02 Defendant Uber Technologies, Inc. ... Uber Technologies, Inc. may be served with process by service through its registered agent, CT Corporation at 1999 Bryan Street, Suite 900, Dallas, Texas
You have to look at it like Dara Khosrowshahi personally came and dumped garbage on your street, and he needs to be held accountable for his actions.