Anyone see why I've picked up driving infringement?

I knew the rules so it’s falls with me, Ive done it a few times where I’ve waited for tipping and got my 45 out the way, so I use other work for a while and then get a 30/15 in l. Just so that later in the day when I need another break I only need to clock a 30 (that’s if it suits me)

I’ve just got lucky in the past and next time I will shunt back and forth couple of times.

Least if the question ever gets asked I can explain how I made the mistake, whereas before I was adamant that I’d done nowt wrong. So thanks.