[SUGGESTION] Reefers should spawn when a reefer gets high instead of how they currently are

### Describe the feature you have in mind.

It doesn't have to be exactly the suggestion but the current spawning mechanics causes reefers to accumulate which shouldn't happen

### Does this solve a particular problem?

<img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/f3caf0ef-cc4c-4599-982c-8eaa39849604" />