Sounds like paranoia if there is a genuine reason for them being there, guys probably going mad about his drive and police have to show they give a shit going through the routine.
Just carry on your normal routine, but be extra careful around feeding time. Chill, sounds like there after a maniac concrete dumper, which I'm assuming is not you.
Deep breaths man, deep calm breaths.
Hopefully it's my paranoia. I'll keep chilled and hope for the best thanks for the support man much appreciated!