A very nice write-up on Bob Meher of SnowRiver Campers...RIP
I met Bob acouple of times at RV shows. I enjoyed his banter. Linked below is a nice article on his passing in TCM: A Celebration of Bob Mehrer of Interior RV Inventor of the Truck Camper Slid...
We haven't crossed at Port Huron in the last year or so, things may have changed but at that time cars and RV's went through the same inspection, no special RV lane as at the Detroit bridge.