Kinda sounds like you're inventing problems here and pretending human solutions exist (again, how will any truck run away in the first place?)
I'd imagine a car will hundreds of cameras and sensors in it would be better equipped to deal with crime anyways.
I've seen plenty around constructing some trolley-problem style moral argument about deciding who to kill in a crash. I don't know why it's expected that they'd have to solve, in a fraction of a second, a problem that people have been arguing over for years. The human reaction will probably be at the level of "jerk wheel quickly".
Why is this a problem unique to self-driving cars? Is it that it "won't" runover the counterparty? Have you ever even considered the idea of running over a thief? I suspect our legal infrastructure would not look kindly upon you in most jurisdictions.
Stick with what works now! upgrade to the new Hermes 3000 typewriter