How much more of an impact could these panels make if they were put in stationary places where they can make better use of the available light. Rather than have one side always be facing away from the sun and the other not being optimally placed with only the top being somewhat better placed? Not to mention when there is any shadows from trees, buildings etc during the trip. Could we do better by just building a bunch of service stations along the routes that have these panels instead that truck drivers could plug into periodically? Or even be charging batteries that can be quickly swapped when a truck arrives?

IMO this is only a viable option when panels are dirt cheap, we already have solar stations around the place. And ATM seems like we should be better investing in those stations first.