Turns out the bomb had also closed the SDR so car not a good way to travel either. No attempt at getting to Lliswerry.
Instead run down the road to see if I could see anything going on, and then have a look at the traffic. Went right to motorway junction; SDR open on way back, but using bus and ice cream van as reference, they'd done 200 yards in the same time it took me to do 3k.
Not doing anything too hard as day off tomorrow so will do at least something then. Bit of controlling work to do.
https://www.strava.com/activities/735407485
Let's see if that gets random kudos from USA.