Officer Here

What callouts did you install. For cars(DLC), install Heap Adjuster, Packfile limit adjuster, Siren Setting Limit Adjuster and Gameconfig for the latest GTAV Version. Install RagenativeUI. And attach a RagePluginHook.log that is inside the GTAV Main Directory.

No. There are no EUP 9.6 Backup Config for Policing Redefined as far as I know There are Backup Config for EUP 9.10(9.7, 9.8, 9.9) that are made for Policing Redefined.

So the pack Requires Siren Setting Limit Adjuster(SSLA). Without it. The lights won't work properly. Link to SSLA

What car pack did you installed. Did you have ELS installed Properly and put the els.xml's to GTAV-ELS-pack_default? Did you have the Latest Script Hook V installed?

Not even when you press/spam ESC?

You can unbind keybinds inside the GTAV settings(In-Game)

Is the traffic mod free or paid

Yes. Don't let other RagenativeUI files that is usually inside a Plugins zip folder replace the one from GitHub

Install Latest RageNativeUI 1.9.3 from GitHub Link:https://github.com/alexguirre/ragenativeui/releases Do not use or place/replace RageNativeUI that is usually inside a scripts/pugins zip folder into GTA Main Folder cause it might be outdated. Use the one inside the GitHub Link. Put the RageNativeUI Files into GTAV Main Directory

I think the Vanilla LSPDFR PD Garage don't come with the Police4 model so you need to spawn the Police4 using RPH or Trainers Like SimpleTrainer(TrainerV) or Menyoo

No.

What mods and car mods did you install?

Install Heap Adjuster and Pack file Limit Adjuster, (Siren setting limit adjuster is optional)and latest Script Hook V.