Not from a movie or tv show, but Walter Mosely wrote one of the coldest lines ever in Fear of the Dark (I think)
To set it up, Van is a stone cold killer and Paris is pretty terry cloth and they are riding around with a body in the trunk in LA in the 50s
"What's wrong Paris?" Van asked after my body went through a fairly pronounced spasm.
"Worried about the cops stopping us. It's late. They might grab us just for driving."
"That ain't our problem, man," the killer said. "It's their widows and fatherless children got to worry 'bout them."