I'd have a closer look at the law first- sometimes certain things are permitted. And in the US those laws are almost never enforced as long as it's not a blatant violation since GPS and road toll transponders have become so prolific. I'd also look at the fine; if it's fairly low I'd chance it. A properly mounted dashcam is hardly noticeable from the outside, especially with so many cars having sensor pods and such in the same area
In about 7 years of keeping up with this and other dashcam sites, I've not heard of one single incident of a person being charged with a dashcam mounting violation but in the UK a few have had to remove theirs to pass the MOT (vehicle inspection).
Here in SC use of "electronic devices" while driving is prohibited, but excludes factory fitted equipment, car monitoring devices (gauges), and driving aids. Since I review my own driving habits occasionally my dashcam is a driving aid and therefore legal
As to placement it can't block the driver's vision, that's all.
Phil