What action may lead to vehicle impoundment under Virginia law?

Driving without a valid license can lead to vehicle impoundment under Virginia law because operating a vehicle without proper licensing is considered a serious violation. The law recognizes that a valid driver's license is essential for ensuring that drivers meet specific safety and competency standards. Law enforcement can take the step of impounding the vehicle to prevent further illegal operation and to protect public safety.

In contrast, while speeding is a violation that can result in tickets or fines, and parking violations may lead to fines or towing of a vehicle, they are typically not severe enough to warrant vehicle impoundment in the same way that driving without a license does. Using a cell phone while driving, although a violation of distracted driving laws, also tends to result in fines rather than impoundment. Thus, the severity and implications of driving without a valid license make it the correct answer regarding actions that may lead to vehicle impoundment.