While many bridges and tunnels have tow trucks and operators stationed at both ends for normal vehicles, they probably do not have heavy-duty towing available quickly. These specialized trucks can tow other semi-tractor-trailers, dump trucks (both garbage and material haul trucks), etc.

Extra points for putting the large bus or truck on it's side, requiring a crane or much more work to get it on its wheels.

And you don't have to walk off, you can unload your electric scooter and zip away to start your new life as a fugitive.