Human nature says, "I will park at the closest location, I can".
For those that are able bodied like myself, I don't find that walking a few more steps, to be a bad thing.
Parking at any square is a problem when popular acts are performing and that will never change. I agree that if there is a performance at The Sharon during third Saturday of the classic car shows, it would pose a challenge.
Somehow, I think the people booking these type of events, will take that into account.
Time to take a "chill" pill.
__________________
"It doesn't cost "nuttin", to be nice". 
MOM
I just want to do the right thing! Uncle Joe, (my hero).