We were just on a lil road trip and I'd been wondering: what happens when you're on the freeway/highway in a 16' high truck and there's a clearance sign of 15'? Do you just pull over and call the police? How do they get you out of the situation?
Vehicles like that are usually used for commercial operations where the path was likely chosen ahead of time to not encounter problems like this. Could probably wait until the road is less busy and go back and around with police assistance if it somehow happens anyway.