I can read that most of you don't realize how numerous the drug interdiction cops are in the Southern US.
There are entire squads of specially trained cops and k-9s who patrol the interstates with the sole purpose of finding and seizing cash/dope/contraband.
Here in NFLa most efforts are concentrated just across the GA and SC border. If you are a single Hispanic male driving a nice rental car from NY...well uhhm...you'd better be driving 1 mile under the speed limit, lol. 1mph under though and not 2mph under the limit because that is considered suspicious behavior too...;^))