Due to the front wheels being the turning wheels, for most people backing into a parking spot and pulling out are easier then the other way around. If you are backing out you can't start your turn till you are almost all the way out of a spot so you have room for your front end to start moving sideways.
Plus if you've ever had to push a car out of a parking spot because it was pulled in and needs a Jump, that can lead to a habit of backing in so you don't need to push it out if you ever needed to jump it.
Registration tabs are displayed on the rear plate only for passenger vehicles.
The op does have an arguable point that the requirement to park front in is unduly onerous on a person who drives a long wheelbase vehicle. Some trucks are faced with aisles narrow enough that parking front in is actually impossible. Backing in allows a different trajectory of the vehicle and allows them to park in a lot with narrow aisles.
I know that is not a legal defense but at this point, that and hoping for a compassionate adjudicator (who hopefully drives a long truck) is about all the op’s got.
Anyway, this instance involves someone who missed the sign that states not to back in because they disregarded the sign that states "do not enter". Something tells me the OP (in the parking issue case) doesn't obey signs anyway.
Brian needs to lobby his local State senator or Assemblyhuman and ask that nose in or back in parking is availiable anywhere in California.
There is also the fact that backing into a space can - and often does - take more time as the vehicle first has to pass the space in question, then position itself, then reverse slowly and carefully into position thus disrupting the flow of traffic along the aisle as people have to stop, or possibly reverse to provide the backer some room. Turning front end in just requires a single movement if done appropriately. So, from a traffic flow perspective, allowing backing into a space can be an issue. And while one can argue the reverse is true, depending upon the city or the nearby venue(s) arrival times may be more problematic and congested than departures.
There are any number of reasons as to WHY backing in may be prohibited. The point here is that the action WAS prohibited and there was a sign clearly spelling this out. That's not the fault of the parking guy who issued the cite, the police, or anyone else ... except the person who failed to comply with it. It's an "Oops!" moment, not the end of the world and not something that will be litigated any time soon.
I wasnt meaning it was specifically snipers fault your state doesn’t use stickers on front plates. It was a joke. It just seems silly to not require them on both plates so whether coming or going, you, as a cop, can see whether the reg tabs are not outdated.
And please take note, I acknowledged the fact the ticket would be valid and the only hope I see of anything would be to find a sympathetic judge.