The best alternative that I have found is to purchase another holster for transportation. I bought 2 Bulldog nylon holsters ($15 @ Xring) just for this purpose. One is attached to the dash in my Jeep and the other resides in my wifes car. When I get into my Jeep, I unholster and then secure it into the dash holster. When I am driving my wife's vehicle, I take the holster out of the glove box and secure my sidearm in it. Then it goes onto the passenger seat with the seatbelt holding it or if the wife and kids are in the car, my wife usually holds onto it.
Your life is made up of 2 dates and a dash... make the most of the dash!