There's all sorts of things that future ('smarter') meters could theoretically be designed to do but, as I wrote (in relation to the current technologically, which is being deployed at enormous expense) ..Tied up to your EV charge information, they could tell the EV charger to switch off or reduce it's charge rate for a while..
... in any event, the only thing they (current 'smart' meters) could theoretically do in response to that information would be to switch off the entire installation.
Kind Regards, John