Follow the Rules, No Exceptions
To always abide by the rules is probably the only cost you should pay in return for the no income tax advantage. Apparently, this city comes in pretty strict when it comes to its laws and regulations. These rules even include the strangest and very uncommon prohibitions that in many places around the world won’t even be considered against the law.
For example, the smallest form of public display of affection (PDA) would easily make the police come and arrest you. In worse cases, they wouldn’t even think twice about deporting you. Even though it seems very alien to your cultural background, it’s best to always learn about their cultural background to hinder unnecessary conflicts.