To expand on this, e911 isn't a functionality of android that we can control but of the phone's qualcom modem. The part of android that interfaces with this is a closed source binary IIRC. To fully disable e911 you'll need to get the firehose file for the 4a 5g and do some editing of that file, and then import it back into the phone using qfil.
Problem is getting a hold of the fire hose files. 😔