If you happen to get pulled over on a more local road (as opposed to a highway or interstate) just keep a close eye out when driving for catch-space/sewage grates, where you might be able to ditch your stuff. Put a small fishing weight in the baggie or whatever you have to do to give it enough weight that it would fall right down, out of sight and out of your personal space- forever. If it is too light, it would probably just blow to the side of the grate due to a small gust of wind, or it would end up right on top.
Otherwise, try not to reveal your good stash spaces over the internet so that the LEO's monitoring the forum get a clear idea of what is most popular. Just know that there are plenty of original spots, and the police can't look everywhere. Remember that they have dogs, too. They'll commonly check under the drivers seat, on the floor there (including underneath any mats), in the center console, on the dash, etc. Anything in plain sight is fair game, but otherwise they need your consent to search if they don't have any probable cause such as the strong odor of cannabis coming from the vehicle.