Aviation in Second Life can be a deeply frustrating experience. While ban lines aren't a problem except at low altitude, as during takeoff or landing, security orbs can affect you at all altitudes. If you trigger an orb with a short fuse or a longer timeout on a large parcel that takes longer than its timeout to cross, you're removed from your vehicle and sent elsewhere - but your vehicle isn't, so it merrily flies along until it goes offworld or finds a no-object-entry parcel or crashes. There's no way to know this will be a problem before you get to the parcel.
I would like to see a change, either in scripting of llEjectFromLand() and llTeleportAgentHome() or else in mainland policy, to restrict a security orb's ability to separate you from your vehicle or to limit the altitudes over which it is effective to some vertical distance from the orb. I have no desire to invade anyone's privacy; I just want to go flying without getting ejected from my airplane without any way to avoid it.