Have you seen much in the way of debris on the shoulders of I-8? Shredded tires or those nasty little wires?
This past Christmas I cycled from Tucson to El Paso and the year before from El Paso to Austin. The next obvious trek for upcoming Christmas break would be San Diego to Tucson I know I can take the Adventure Cycling route via Tempe/Phoenix and mostly avoid too much interstate cycling. However, I'm tempted to either take I-8 for a bit or MX-2 (if things settle down) to go via Organ Pipe National Monument and then if allowed the Tohono O'Ooham reservation to Tucson - rather than going as far north.
When I was on I-8 between Tucson/Benson last year there was a fair amount of debris on the road - so I'm curious what you see in more remote places.