Did the cop run your name? Are you on parole now?
If both of those, are yes, then I would probably be more on guard here. Moreso than a prick of a cop or psycho ex, if you are on parole, move it NOW. There is a good chance, that the cop could have ran you in the system at any point, and if it came back that you are on parole, with drugs in the house, I wouldnt be surprised by a house visit from the PO.
Hopefully this is all just a crazy girl trying to interfere with your live. But be SAFE, clear it out, and lay low for awhile bro! Good luck!