Let's not forget this is the South. If the shooting starts, the VA state govt may find 2A supporters from other states streaming in to bolster the current numbers.
I know that the Nat'l Guard is now federalized, and I do not know what power if any a Governor has unilaterally to activate them. It would be funny if Trump put the hammer down on that with the threat to arrest the Gov, AG and other officials try to further instigate their little partisan insurrection.