@sequoia464 The bottom edge of mine rests directly on the dash and is slightly angled towards me. I would angle it more but I like two sets of eyes on it at all times when possible. I also discovered you can tailor the alert noises it makes. Out of the box it made all kinds of noises but I have filtered those down to just a few. My favorite is the tone it makes to wake me up 1/2 mile away from the next turn.
One of the keys to keep you from boxing yourself in is to do a very through "map recon" before you begin the daily journey. I plan my routes in RV Trip Wizard. I will zoom down and view each turn step by step. I'm not good enough to memorize it perfectly, but it helps during the day.