How to treat the behavior of locking the bicycle?

The legal step is: buy a pair of scissors. Cut the lock. The above behavior is legal. Even, in theory, you can ask the bicycle operation company for money for scissors afterwards. Private lock is an infringement of bicycle operating company. You belong to the interests of the bicycle operation company, and you take the initiative to manage the affairs of the bicycle operation company in order to avoid causing losses to the bicycle operation company. There is no legal or agreed obligation. So your behavior belongs to management without cause, which is legal. Instead of infringement, you can also ask the bicycle operating company to compensate you for the cost of scissors according to the above laws.