They might try, but I wouldn't be surprised if dealers parked cars in the spots for charging, had them in locked off areas, had them turned off or otherwise inaccessible, etc. I may be misremembering, but I think this was the case with existing infra at Nissan dealers and the leaf? Might have been GM and the volt? I remember seeing complaints online.
I suspect they'll fail to adapt the same way most large companies fail to adapt when a startup disrupts their existing customer base.
In this case, there's the added element that car manufacturers are also harmed by their legacy dealership relationships.