This is a feature not a bug.
If one of the words is slightly wrong, then you want it to be obvious.
If the Kentucky emergency operator adds an extra s they will see that it can’t be right. With the contiguous numbering the ambulance would be close, but probably still unable to find you.
See page 23 of the patent: https://patentscope.wipo.int/search/docs2/pct/WO2014170646/p...