Commenting on part 1:
You're pushing it way too far with the population factor. The population should be considered when conducting a robbery against another player. This is in place to limit the number of random robberies that can happen anywhere on the map, at locations that do not make any sense; for example, burgershot, a public road near a police station, a gas station, etc. The number of random robberies that happened before the rule was implemented was ridiculous and it was just a case of hands up, /me frisks, then finding another player to rob. Not only this was an unrealistic robbery as it doesn't happen IRL due to the risk/reward factors, but also it wasn't an enjoyable experience. This rule does not benefit LEOs in the slightest, only civilians and criminals, so I don't see how this is relevant.
You're saying the roads are populated and want to push this on LEOs, but this is how the server works, not only for LEOs, but for everyone else, including criminals.
Lastly, shootouts can happen anywhere on the map, doesn't matter if it was at a secluded location, or a public one, same thing applies to kidnapping, as long as you have proper escalation, and you're not in a NCZ.