stickkiller01

Yep, that was it. I had four instances of vehicle where the v was supposed to be capitalized. Thank your for your help and that invaluable tool!

You are on the right track. Make sure you're getting the correct information regarding where the error is located: 
 
"The 'vehicle' start tag on line 2462 position 7 does not match the end tag of 'vehicle' . Line 2462, position 36." 
 
You probably forgot to add something like < >, or " ", in the vehicle section, to end that section properly, according to XML logic. 
 
Takeaway: next time after editing an XML file, copy and paste the entire text into this TOOL, it will show you whether or not the modified XML file is valid. This will save you from game crashes. 

If you're using Steam, or any other paid legit/legal gaming platform, go to settings and disable "auto updates" for GTA V. 
 
And if you have extra disk space, I recommend downloading an extra GTA V copy from Steam or Epic, or Rockstar. This copy will be your original/unmodded GTA V copy, and it'll be used for installing updates. 
 
You can do this by renaming your current LSPDFR copy to anything other than Grand Theft Auto V, and downloading another copy of the game, legally, renaming it to "Grand Theft Auto V - Orignal." Keep this copy stored on your disk until there's an update.
 
For updating, you'll rename the Original copy to Grand Theft Auto V, and the LSPDFR copy to something else, then install the update via your gaming platform. (Steam, Epic, Rockstar, etc) 
 
After that, check which files are modified by looking at "date modified", and only copy/paste those files into your LSPDFR copy.
 
Then rename the folders and you've successfully updated your game without reinstalling all of the mods. 
 

Meh it was only a couple bucks. If it costs me a couple bucks to figure out how to get LSPDFR setup how I like it, well then that's the price of admission. Plus Alex is doing the Lord's work with EUP, I don't mind considering it a charitable contribution. 
 
I am using your configs, just editing them to use the custom vehicle packs I'm using. Agency and UB settings, that is. Thankful this community is as helpful as it is.
 
While I'm here, I know there's a new update dropping soon and I was wondering, what's the most effective way to protect my LSPDFR build from R*'s notorious updates? 
Good to know, thank you sir!

I suggest you two take a look at DLS
 

Correct. But it appears there could be a further issue.

Let's restart here. Remove ScriptHookV.dll and run normal GTA V.
If it still crashes, rename mods to _mods and retry.
If after all that, remove enbseries/graphics mods and retry.

Let me know which of those steps works.

LSPDFR has been updated and this issue is now hopefully fixed.

I can reproduce the issue and we will release a fix for it shortly.

This is a tricky one
 
It depends on the Order you install them in a lot of the time, i would advise using using this mods and in this order
 
Natural Visions - Install 1st
Radiance V - Install 2nd
 
I would also highly suggest using an ELS Vehicle to get the best Lighting / Graphics experience possible!

For note, the AI's, once arresting a ped, won't immediately take them. I believe it sometimes takes some time before putting them in a vehicle etc.

I thought there was something in the lspdfr.ini for that but I don't see anything.  The only thing is, like you said is in the STP.ini. here
 
// Take control all peds arrested by LSPDFR Cop and prevent the suspect being transported (yes/no)
TakeOverAllArrests=yes
 
I have mine set to yes, where you should have yours to no.  I'm not sure where else it would be that it's preventing the AI from transporting the ped after they arrest.  You got me thinking there and I can't figure it out.