Can't figure from the photo if CM is wearing a hood/scarf or hijab?
Think someone mentioned previously religious dress such as a burka would be an ideal disguise.
Imagine they're sourcing most of their food & supplies from street markets / small shops where cash is not unusual.
But needed to head to argos for the larger supplies
Agree MGs plastic bags are bizarre & draw attention. Seems most logical that they are ruined & he's trying to keep feet dry. Which suggests moneys running out.
I guess devil's advocate, could also be that they still have lots of money & he is trying to disguise a very distinctive (expensive) pair as they're entering high CCTV area.
On clothing, CM doesn't look like someone who has been living outside in this picture JMO, her clothing has changed from the long heavy coat layers in earlier pics to quite lightweight, it seems. Ankles exposed by the looks of it, between leggings & pumps? It's the sort of outfit this time of year you'd wear just to nip to the shops for example.
Perhaps just wishful thinking from me that they haven't been sleeping rough in this freezing weather
Lastly, I don't think they have another vehicle they are driving (parked up, sleeping or storage, maybe) . Buying one in cash is easy enough, but insuring, taxing it when you're on a nationwide watch list is impossible.
Ofc your car still runs & drives, but getting past ANPR cameras for long without getting pulled over is unlikely. & once that siren goes behind for a routine doc check, its game over
All just MOO