absolutely do drive through to get loaded up after shopping. Many of those customers are retirees that absolutely could not carry their purchases down to the parking garage.
Maybe we shouldn't be encouraging elderly citizens to drive through a street that is crowded with pedestrians? If you can walk through the market, you can take an elevator to Western.
The market is a very unique place and if it caters only to the tourists it will kill what makes it a tourist destination in the first place. It would become even more hollowed out as it drives away locals.
Locals are also walking on Pike Place, dodging cars that don't belong there. Making the market safer isn't going to drive people away.