[Google Maps] Location Submission Google Maps App

My client is a towing company. One of the challenges of a towing company is finding the exact location of a tow when the caller may not know where they are.

We want to use the Google maps plugin to achieve this. However I have tried and I just can't get it to work. This is what we want to do.

We have a page called "Find me now". The customer will be able to go on the page and see their exact location, then submit their location as a guest.

I am able to create the location map and see where I am. However I can't get the shortcodes to work to submit. And how will the website owner see where they are...

Please help.
Michael