SOLVED x2.. So apparently patchday23ng (the latest patchday as of this comment) does not replace all the cars for some reason, although patchday22 will, so if you place them in that patchday they should work (ive not tested it)
SOLVED: Okay so I did two things, I installed
and
https://www.gta5-mods.com/misc/gta-5-gameconfig-300-cars
And all the pre-requirements for the gameconfig mod, Then I installed all the vehicles into the Albo mod Dlcpack instead of patchday23. along with followed the instructions in albo's README.html that directed me where to install the vehicle.meta and vehiclevariations files after all that I was able to spawn all the RCMP vehicles with none of them spawning the vanilla cars
I'm having the same Issues as TheHam, I have them placed in patchday23 and they're not replacing the correct files when I spawn them in the trainer. the sheriff vehicles, cruisers, and riot vehicles all still spawn in as vanilla