Seems like a new driver in a car he/she can't handle. Stopped late at a roundabout, stalled, weaving left and right down a straight. Get a car you can handle mate!
This driver was in the wrong lane and so instead of carrying on and getting back to the correct route safely they decided they were allowed to dangerously cross the solid chevrons.
Drives like a bell end. No wonder he gets pulled over by the police.