FWIW, seems like the road shoulder is the catchall place for tire puncture materials; I've had the same "luck" when riding there. Be prepared to decide how you are going to repair a rear flat since inverting the bike (the way I've always proceeded for easy removal and replacement of the rear wheel) will put your display at risk (don't think that it can be removed like some OEM bikes). Had my friend with me last time and he held the bike up; if I had been alone was prepared to use my shoes for a "stand" to protect the display (I use "regular" tires on mid-drives since they're being used off road).