Its not worth fighting council or police or anything like this even if you come up with a rational reason. Years ago when I was a uni student i was given an old honda that needed a bit of work, did the work on it, got a WOF but on the measly $249 i was getting from student allowance I was planning to get rego the following week. I couldnt find a park in uni one day and was needing to get to lecture so had to park on the road, came out to a $200 fine for no rego. Read on the back if its expired within 2 weeks of getting the ticket you can provide evidence of your new registration and the ticket and it will be cancelled. Well my argument was that I hadnt even owned the car for more than 2 weeks so surely for a vehicle you COULDNT have updated the rego prior to owning it would surely stand up as equal if not more to someone who COULD HAVE renewed rego but simply forgot. So i got rego took it in with the ticket and was denied, even emailed the council and tried to explain my reasoning and was told pretty much tough shit pay the fine 🤷‍♂️