When cities receive Federal funds to purchase equipment for fire and police departments, do these cities have an obligation to help out neighboring cities?

For example, could a Detroit resident call the Dearborn fire department for help to put out a fire at his house on Dragoon?

Or the same Detroit resident who is being robbed in his house call the Warren police department if Detroit police are unable to respond?

Note: All fire and police officers are regulated and sworn under state law. A peace officer in Michigan has full arrest powers anywhere in the state of Michigan.