This seems to be violating the Maps API terms of service?

https://cloud.google.com/maps-platform/terms

(a) No Scraping. Customer will not export, extract, or otherwise scrape Google Maps Content for use outside the Services. For example, Customer will not: (i) pre-fetch, index, store, reshare, or rehost Google Maps Content outside the services; (ii) bulk download Google Maps tiles, Street View images, geocodes, directions, distance matrix results, roads information, places information, elevation values, and time zone details; (iii) copy and save business names, addresses, or user reviews; or (iv) use Google Maps Content with text-to-speech services.

(b) No Caching. Customer will not cache Google Maps Content except as expressly permitted under the Maps Service Specific Terms.