Personally, I don't object to people practicing their religion, as long as it's not causing problems for others.
However, at what point does your desire to use a lift on a Saturday without pressing a button override that of the general population to go up 20 floors without stopping at every one? Is there no general principle that if local laws or customs conflict with kosher requirements, then they must take precedence?
There really isn't much of a case where local customs,as opposed to law, prevent you from following Jewish religious law. If there's a sabbath elevator, you take it. If not, walk. No one else is inconvenienced either way.
But, one might say, what if the landlord turns the only elevator into a sabbath elevator? What about the people who are not observant Jews? Doesn't that inconvenience them? The short answer is that it's up to the landlord, and what he wants for his tenants. Issues like this pop up all the time, and not just with respect to Jews. Should the school cafeteria serve fish on Fridays in March? Judge on a case by case basis. If there are lots of Othodox Jews in the building, and two elevators, it's a pretty easy decision. If there's one Orthodox Jew in the building, and one elevator, it's not likely the landlord will inconvenience the other tenants for the sake of one tenant's religion. If there are two observant Jews, and one of them is the landlord....tough call.
As a general principle, an observant Jew is obligated to follow the Law. If it's annoying to others, that doesn't really matter. The odds are that what annoys them is their own prejudice. However, if it creates health and safety issues, those override religious ritual requirements. If the secular law forbids him from following the Law, I'm not sure. Jewish traditions celebrate those who refused to bend to the authorities, like Mordechai in the Book of Esther, or medieval Jews who were burned rather than accepting Jesus during periodic persecutions, but it also celebrates those who outwardly lived as Christians while secretly remaining Jews. Not sure if there are general guidelines.