Re: Cops in the area of Camp Crystal Lake
The full body armor explanation only works until you see the security footage from the police station. Kevlar can stop small caliber rounds, but I don't think anybody would keep to that theory after seeing Ahnuld being pelted by assault rifles. And I think a few officers even shot him in the face; rationalize that, I challenge you!
I don't think anyone shot him in the face. While it wouldn't have killed him, it would have created very visible damage to the skin on his face. I didn't see any such damage during that scene. His face underwent some initial damage during the 1st car chase with Reese & Sarah (which is why he wears sunglasses for most of the movie after that). And then, I don't spot any further facial damage until that semi-truck runs him over.
Kegg: "You're a Trekkie. The capacity to quibble over the minutiae of space opera films is your birthright."