Has anyone gone under the overpass near the entrance to West Glacier RV Park and Campground in a newer Newmar Class A? I have a 2024 Mountain Air 4118 and my manual shows a height of 13' 2". The overpass sign states the height is 13' 6". Seems too close to chance it. I trust the overpass sign height, but not sure whether my rig height is accurate/variable.