By the sounds of it.. You don't need a front mount anyway.. Front mount shouldnt cause a problem i would have thought.. Also post pics of your BOV.. it sounds stock to me..
If they are constantly pulling you over.. I would be looking at changing your plates.. Previous owner was prob on the wrong side of the law.. If it continues.. I would start writing down a log of occurances.. Even record it.. Name, Badge, Car ID.. Time, Reason given.. If it's the same officers then it shows a pattern.. Make it 100% stock and if they are excessive then I would go to the CMC.. But you will prob have a fight on your hands.. They will be on you all the time..