Two trucks in Smash M4 Jn: 15

Anyone know what happened. Got caught up in the hold up… Involved two artics… One looked like fowlers- other was a foreign carting plants. … _motorway/

Looks like the green truck was on the hard shoulder when it was clouted from behind. That’s just my opinion, but I’m sticking to it.

Is that bloke in the hi viz giving a ■■■■ salute?