You can use a Google Maps image if you give attribution in the way they want it.
Found on Permissions - Google
Using Google Maps, Google Earth and Street View
All uses of the Content must provide attribution to both Google and our data providers. We require clear, visible attribution when the Content is shown. You may not move the attribution to the end credits or fade it out after a few seconds.
Note that if you embed a classic map, Street View panorama or My Map; use one of our APIs on the web or in an application; or export a video or JPEG from Google Earth Pro, the necessary attribution is already baked into the map and no further credit is needed. Learn more about how to properly credit, as well as how to identify providers, on our attribution guidelines page
If you are unwilling to meet our attribution requirements, contact our data provider(s) directly to inquire about purchasing the rights to use the Content directly. You’ll find provider contact information listed on their websites.