Usage of Nominatim Reverse Geocoding with custom free OpenGTS server and 2-3 vehicles

Hi all, I just wanted to know if using Nominatim service from OSM for reverse geocoding for my custom OpenGTS server and 2-3 vehicles is ok. The request rate from each vehicle is approx every 10 seconds. I have read the terms of use of free Nominatim service, but just wanted to be sure if this or a similar usecase is acceptable or already beyond... Thank you!