I try to stealth vape in my car which is difficult because I have a big honkin' PINK Riva. LOL....so far only one person has questioned me and he said "is that one of those electric cigarette things?" I took it as an educational opportunity. My concern is getting into a tangle with law enforcement over what it is...I'm sure none of our officers here are familiar with PV's and would probably take me straight to jail without passing go if they saw me with it in the car or in public. It would almost be worth it because I would cause a stink like no ones business....and I could educate the entire county in one fell swoop with headlines like "Middle aged woman wrongly arrested for vaping while driving sues county, wins $5 million."
If you got a copy of the instruction manual, carry it in the car.