如何分析bag and baggage?

有人问: 有这样一句话:

(1)The hotel manager asked them to leave, bag and baggage, immediately.

bag and baggage是否独立结构作状语用?

bag and baggage是一成语,用作伴随状语,其义在此为with all their property(带上所有东西)。顺便提一下,这种已变为成语的“零冠词+单形可数名词+and+零冠词+单形可数名词”结构在英语中并不乏例,再如:

(2)He does not attend to his duty body and soul . (body and soul的意思是“尽心竭力”)

(3)Read it heart and soul .(heart and soul的意思是“聚精会神”)

(4)He was hand and glove with his new friend.(be hand and glove with...的意思是“与……亲密无间”)