I've been thinking about this quite a bit lately, as I routinely have folks in my car that I don't necessarily know that well. I'm in my personal car (no cruiser), and have looked at rigging up a wire separator for dogs as a cabin partition. But, that's a different discussion.
I've been hesitant to rock OC since it's an enclosed enviornment, and I'll be spraying nearly blind left hand over right shoulder. I know I'll get hit as well if deployed, especially a cone, probably with a stream since it can 'splash back' and I'd be 3 feet away from impact or less. I haven't messed around with gel OC, but my understanding is it is less effective and needs a more precise aim.
So - anybody have recommendations (other than stopping the side gig- it's paying for the house)?