Rigor Mortis

[TranquillityBase]

Its not sunset                               It's
   or the last leaves of autumn 
      or gentle into that good night no 
 no metaphor, not yet.            Really excellent lead-in stanza.

  It's high-noon, loud, summer,     You use "loud" in a better way later on, maybe another word here:  noisy, clamorous, blaring.....
         quick, and car exhaust.
      Just a glance–downtown,   maybe move "downtown" to the first line of this stanza?
  asphalt, opposite McDonalds, in the divider.  Another good stanza, I like the staccato nature of the chopped up phrases here and in the rest of the poem

It's not sleep. Even from my distance 
I see it's not sleep. Too stiff,
too much like driftwood, sun dried, petrified.    what you describe in next two lines make this word unnecessary
      Too much like wood 
         on its way to stone, too quick.   "quick" has multiple meanings, one of them being "alive"; I think you mean "too soon"

       And there's the women 
     back broke on grief              backs broke in grief?  (back needs to be plural since subject is "women")
   washing over his husk
crashed over and foaming       I like these lines, but I'm unclear what's happening; their grief is washing over the corpse?  "crashing over..." would make it clearer
nearly as loud 
as traffic.

At first I was put off by the indentions of the lines.  Rereading it, I think it works.

I really like the poem:  the staccato images, the shock of what comes with them, and the ending.