I’ll take a stab....think pot and assorted drugs
“Maggie comes fleet foot
Face full of black soot”?
"Johnny's in the basement
Mixing up the medicine
I'm on the pavement
Thinking about the government"
"Maggie comes fleet foot
Face full of black soot
Talkin' that the heat put
Plants in the bed but
The phone's tapped anyway
Maggie says that many say
They must bust in early May
Thinking about the government? Face full of black soot? The phone's tapped?? I'll give you "mixing up the medicine", but these others...
Maybe, instead of him somehow "knowing of the events ahead of time", rather it was the lyrics which inspired the Weather Underground to begin their bombing campaign? They did, without a doubt, name their organization after a line from this song. I know, it's a big maybe, but I certainly would not close the door on the possibility.