Headscratchers / Halloween: Resurrection

• Why did no paramedics notice a man with burnt scarring and wielding a kitchen knife after Michael had switched "bodies"?
  • The only explanation I have is that Michael may have healed enough to pass for normal over the last twenty or so years.
  • I always assumed it has something to do with the supernatural-esque aspects Michael seems to have. He walks straight past a bunch of paramedics holding a bloodied knife and (presumably) covered in burn scars...then just seems to fade into the bushes. As if he was never there.
  • I assumed the reason why no one noticed him at that moment was because everyone was focused on Laurie stealing the van, after stealing the gun from an officer and holding them up to steal the van. After driving off, they were more concerned about the woman who is acting a bit crazy than the other people in the area.