I do not see how asking US senators can help.
I hope some explanation comes soon.
At least in the Bay Area the various coroners process suspected homocides first, then suspected plagues/pathogens, then unexplained deaths, then maybe 'outside the hospital but not unexpected' deaths.
What that means in our fairly area is that if your death isn't a suspected homicide you probably won't get an autopsy. The only way to get that information would be to hire a forensic pathologist to do the work for you.
Just in 2010 there were thirty five thousand cases of which five thousand were examined or autopsied. Staff information is also available on the site.
I would recommend following up with whichever part of the governor's office this agency reports too. Find your local State office Senator (not the US Congressional one) as they may be more in tune with your community.
Perhaps we should learn what the issue is before offering suggestions.
You might be able to get a more timely response by hiring a private medical-examiner/coroner.