Brenner Pass Digital Toll
 

We will be driving a rental car from southwest Munich to the Dolomites (Ortesei) on Friday morning Sep 15th. We hope to get underway by 9:30am. I believe German schools start their term that week on the 11th. But I am still nervous about traffic heading south.

I see you can purchase a digital toll for the Brenner Pass and travel through different toll lanes. I need our rental car information to do so and we won't pick that up until that morning so would have to purchase it while on the road. Can we purchase the digital toll on the phone and is it truly a time savings to do this?