If you've spent a lot of time looking at google maps it goes into "I thik you are a bot" mode and the solution I have found is to load a plain google map in plain satellite mode (so that the map image square is the "top" image), right click on the square to get the image and open the image, and it will take you to a page where you can fill in a captcha. Your IP will then be good for a bit longer.

(The other solution I use is to connect to a vpn so I'm connecting froma different IP).