The sudden jostling of Antonio Amador's heating system woke him up early on the morning of Oct. 24.

He knew something was up when the world outside his window was glowing.

"I looked through the back window of my house and saw the ambulance, police and fire and thought 'something big happened,' " the Severn man said.

What made his electricity flicker was the 2002 Acura crashing into a utility pole on New Cut Road, just across from the entrance to his neighborhood.

Amador, who has been quietly building a case for speed controls on the busy road, grabbed a small camera and walked over to the...