Yep same thing happened with my 2013 gen 5. Happened over and over again continuously for a day or two after washing the car, but just with the driver side door. Door would fly open on the highway multiple times at 75 mph, and also would pop open just parked with the doors locked. Also about half the time the driver door latch would not work at all and I d have to crawl in and out through the passenger side.
Same scenario happened for about three weeks straight. Then, about a week before I was scheduled to drop it off at the dealership to have the electronic door latch switch (or relay or whatever you call it) replaced, the problem suddenly went away.
Now, after 3 months and 15 washes, still no further problems with the door handle.
Weird phenomenon ..... Almost as weird as the brake light coming on half the time I depress the clutch to shift (noticed on the videos taken at the drag strip from the stands). There's no way my foot was even close to the brake pedal - my feet are tiny...