“well then we’ll have to wait here for an hour or so while we get the canine unit” (or some other more-official sounding “authority”) routine.
This:
http://www.hotsauceworld.com/purecap.html
...will stop a search dog in his tracks. It’s oily...has no flavor...and no scent a human can pick up. A few drops of this on the car carpet or door panel...even after it’s dried...and the dog will instantly (5 seconds) get a case of snot nose that would put Niagra falls to shame. Doggie search over. Doggies nose becomes a useless appendage for the next 12 hours or so.
I made the mistake of putting a 1/4 teaspoon of this in a 5 gallon pot of soup I intended to spice up on year. It rendered it inedible.
A dog’s reaction to a masking agent will get your car impounded just as quickly as its reaction to your stash of dope. If you don’t want your car searched, don’t consent; if you’re hauling dope, don’t run a red light.
How about just using some home-made concentrated habanero juice or paste instead? That stuff is pretty lethal too!
If you’re caught doing that, you will be probably be charged with assaulting an officer. So, you ought to think twice.
You can do no harm to a canine unit.