I will be traveling to Rome and would like to use my N900 for both Maps and geo tagging my pictures.

So my question is:
-In the maps app, after acquiring the lock in the GPS can I just turn off the internet connection and continue with the GPS connection? I would like to rent a car to go out from Rome, I know insane.., but I am concerned about the costs (ps, I have downloaded the maps to the device so not downloading maps on the go) of moving around with the GPS on and the thing always using more internet.

-Geo tagging, is the internet connection necessary every time I take a picture to geo tag it? Kinda beats the purpose for me.

Anyone?