According to my knowledge, VA can apply their laws to out of state vehicles. The main ones I am aware of are window tint and exhaust.
Enforcement Note : Tint law may technically be applied to out-of-state registered cars. There is HB 1563 which would make the law apply to VA registered cars only. The bill did not pass. VA State Police opinion on out-of-state cars with tint that does not comply with VA law.