I tried twice when we moved here, my suggestions were never taken. I gave up and just use my business to give directions now.
for Google Maps
you click on a point and hold it until a pin forms
In the pin popup there's the GPS co-ordinates
Click the GPS again and it loads the point not as decimal GPS but...
47°26'46.8"N 122°17'51.4"W For KSEA Seattle International Airport's departure's drive
I did just that when I grew tired of delivery drivers entering the wrong gate because the address’ pin was closer to the other side of my corner.