In the days before I developed and started taking the anti-inflammatory regimen with 10,000 IU/day vitamin D3 (2005-2010), I drove to work and back home with my M60 on the floor behind the drivers seat daily driving 25 miles up 395 to the beltway to McLean, VA .
I configured my M60 with an InGage® 0-60 liter/min regulator from FlotecO2 and oxygen demand valve. If I got hit while driving, I pulled over to use it. That made for some interesting discussions with the State Patrol when they pulled in behind me to see why I was stopped along the freeway... If your CH are hitting at night, strap the M60 with the luggage.