ISSUE FIXED: I reinstalled EUP and now everything works perfectly fine. thank you PNWParksFan for your help, you're the best. Coastal callouts it's so fun.
Installed It, and now I have a cone hat on my character that just says "DUNCE" for some reason, I think it's because I have mods installed yet I haven't played GTA Online ever and have been playing the game with mods for years, only happened after installed EUP Serve and rescue. Also, it's mostly working after I installed EUP serve and resuce but not fully I don't think.
EDIT: I used the Advanced editor part and was able to change the helmet and the goggles, I think the preset was weird. Dunce hat is still an issue. Otherwise the mod is working fine.
UPDATE: Now the police EUP isn't working but the USCG EUP remains the same as previous edit, I don't know why becuase the only thing I changed was the EUP walldrobe file and installed EUP serve and rescue without touching EUP emergency uniforms pack.
UPDATE 2: Dunce hat is now removed.