I got a little newsletter from my auto insurance carrier, State Farm.
In it, they outlined ways to avoid having my Dopermobile stolen. Most of them were common sense.
Here’s one I don’t get:
“Park with your wheels turned sharply to the right and apply the emergency brake.”
Is that to make stealing my car by towing it slightly more challenging?
Generally the reason for turning the wheels and applying the brake is to keep the car from accidentally rolling into traffic while parked. I’m not sure how this is an anti-theft measure, unless it has something to do with the fact that the steering column is locked when the key is removed.
Basically, yes. A determined thief will snatch your ride, no matter what. 
That suggestion must have been made by the National Association of Car Thieves. It is likely to be about as effective as Homeland Security’s duct tape defense.
Unless it’s a tip to help prevent your car from being stolen after it’s slipped out of gear and rolled to the bottom of the hill…
WAG: Your insurance company has an obvious interest in your car not slipping out of gear and rolling back. It may also be aware that the average driver might think of turning the wheels and applying the brake to prevent roll-back as being unnecessary because it “will never happen to him”, but that driver may be more concerned about car theft.
It would make towing marginally more difficult to (though if the car is towed*, it might lead to possible minor damage).
I have been told that it could make life difficult for tow trucks. Like if you park in a tow away zone along with other cars doing the above could cause the tow’er to chose a different car as the tow’ee.
I guess if the theif is using a tow truck this might apply as well.
Re: kanicbird’s comment: A few years ago when I came back to my condo after a two week trip, someone was parked in my space. I called the tow company the owner’s association had a contract with and had to come out and sign a form when the driver showed up. He backed the tow truck up to the culprit’s car, then dropped a gizmo he called a stinger that descended from the boom, consisting of two arms extending the width of the truck. He backed the tow truck up, making the arms of the stinger pass under the victim’s rear wheels, cradling them, then raised the boom, lifting the wheels off of the ground, secured them with nylon straps and drove off. Total elapsed time, about three minutes.
He mentioned he does repos as well. Then he simply lifts and drives off a block or two to get out of range of any irate deadbeats before strapping the towee to the stinger. That can take less than a minute. If a thief is resourceful enough to have a truck, cramping the front wheels would make that technique more difficult.