The touch screen can now be locked by the user, allowing only button inputs during the ride.
Available version: above 1.42.600.3
This is enabled and disabled by simultaneously pressing the bottom left (Button C) and the top right button(Button D). (Figure 1)
It can be enabled or disabled using the in-ride menu. Tap on the D button during the ride, scroll down and tap on Lock Touchscreen. (Figure 2)