What does it mean to come first to the police car and then to the ambulance in a place where there is no epidemic?

The meaning is as follows.

From a public service perspective, the order should be military vehicles, police vehicles, fire trucks, and ambulances.

Both the army and the police belong to the category of state violence machines and represent the will of the country. However, the army protects the security of the country and people externally and faces external threats, while the police are responsible for guarding domestic social order and security. The safety of people's lives and property.

There are also ambulances from private hospitals, which are undoubtedly inferior to fire trucks in terms of their official nature.