Maybe I'm reading it one way and you another................
Your Zumo is on.
You need to turn the reciever (not the unit) off and put if in simulation mode;
Select the 'spanner' button (or wrench as our colonial friends call it)
Select the 'System' button
Select GPS Mode button that is set to Normal
Select GPS Off
Select the "Ok" button
Select "back"
Select "back" again.
You will now be at the normal Where to/View Map screen & your Zumo is now in simulation mode.
Select "Where to"
Select the waypoint/favourite you want to check
Do not select "go"
Select 'Map'
Select 'Set Loc.'
Select 'back' 3 times until you get to the Address/Go Home/Food Lodging page
Select the down arrow once to show the bottom half of the page.
Select the 'Coordinates' button
The coordinates of your waypoint/favourite are displayed.
Again, sounds a real pain, but very quick once you've done it the first time.
As a Quest owner before too, I wish they'd made some of those features available with the Zumo too.