While driving home from rose medical center after work, on hale parkway i first saw a black unmarked helicopter flying east at 3:46pm. i watched it through the trees and wanted to continue to follow it when i got to 8th ave. but then lost site of it. i continued to my house via holly street when i then saw a black triangle ufo about a mile away in the sky under cloud level headed east. at first i thought it was an airplane but the more i looked, it knew it was not a plane. i pulled over to the side of the road by the shops at holly and cedar to take a picture of it but it disappeared when i looked down to get my phone. i don't know if i could no longer view it because the trees were in the way or if it accelerated.