Totally agree Stephen and Lunican. The City has to help, but until they "get it," the businesses that want these people to patronize them need to be even more aggressive in response to changes like this. This is one change that likely is here to stay, because of the huge stink last October over FL/GA ingress/egress and traffic control.
It will likely turn Bay into a racetrack, which is sad; but with the right marketing, it may be easier to get folks to turn off of Bay if they don't have to wait in gridlock to travel a paltry few blocks.
If we had reliable and fixed public transportation along the route to the stadium and back, this likely would be a non-existent discussion.