Someone did this one year in the Houston to Austin MS150. The route passes through a state park known for its narrow, hilly roads. They put tacks down just to cause flats. It wasn't as though the roads are heavily traveled. At a recent mountain bike race some equestrians were upset the trail was closed so they moved tape in sections. The race had been posted for over a month and was one hour from being over. It is suspected the horse riders did it because they threw a fit at the entrance gate and to a park police.

I am glad you are okay, that is one sick person.