If surviving getting hit is lucky your son is very lucky. How old is he?
Several of these dually trucks have hit cyclists in our area and usually end up sending the unconcious rider to the E.R.
We just past the 3' rule/law here in mobile al. We were ranked the most dangerous city in the USA for cycling (maybe in the top ten now?)
I was hit from the rear in june of 2008 by a drunk doing over 50 mph. It left me with a broken neck, a broken shoulder blade and a completely crushed right thoracic area - it also left me more determined than ever to never give up the thing i enjoy most - riding a bike to work! So here i am!