Ya know something else @Huey ..
I am guy who B-words and complains about "New" technology still trying live like back in the 1970s/1980s when I was growing up.
Reefer Trailers today are much "Quieter" than old ones plus ya dont have to constanlty do a "Temp Control" check neither.
Even back in the day ya got "Used" to it and sleep thru it.
Dispatch used put signs up allover the terminal when ya Reefer stops ya got big problems