Flutterby™! : Cyclists and drive-throughs

Shadow forwarded along this story about a bicyclist in Silverdale Kansas Washington who was arrested after blocking traffic while trying to make a point in a Jack-In-The-Box drive-through. I think it's the right of such establishments to restrict sales however they'd like, but I wonder where this "safety concern" about serving people on bicycles from drive through windows comes from.The only thing I can figure is that they're worried about the safety of the person at the window, because perhaps someone unencumbered by a car is more mobile in a hold-up situation, but...

On the other hand, dude, have you any idea what goes into "chicken" strips? It ain't worth jail...