Apparently you rent the trolley and the owner provides a sober driver and you just pedal around town to your destination(s). The driver does the steering and everyone helps to pedal. In the past, the novelty was that passengers could drink alcoholic beverages while on board, as long as there was a sober driver. Not anymore says the Liquor Control Board. Because all of the passengers are pedaling, they are considered operators of the vehicle which means they can be cited for open container while operating a vehicle. Well getting a ticket would certainly put a damper on things.
Here's the rest of the story, from KREM 2 News.