I remember how a few years ago a company paid a speeding ticket for one of the workers, and was promptly fined itself for contempt of court. Judge summoned the manager who approved the expense to court, gave him an earful, and told them in no uncertain terms that if they tried that again, contempt of court fines would go up until they stopped this. The ideas was the whole point of the ticket was to punish the driver, so if a company removes the punishment, they were actively sabotaging a legal punishment.
It's not the driving, it's the parking. You're asking people to find a parking spot in the middle of the city hundreds of times a day, and no shit the spots just don't exist. Either they break the law or the packages don't get delivered.
Some cities have dedicated package delivery spots which help, but that's far from universal and sometimes regular drivers will abuse them. Also, they may not be located near the location the package needs to be delivered.
The people writing, enforcing and interpreting the laws don't care if the law is unfair or impossible to reasonably comply with. That is miles outside the scope of what they do.
Laws that penalize behavior that normal people frequently engage in don't get changed until the people who write the laws get bitten by them (which rarely happens for reasons outside the scope of this comment).
