Sorry, I can't help you with the proper hight or measurement points. I'm amased that you got pulled for ride hight. From your sig & avitar, your car doesn't look low. That cop must have a hard-on for imports. I've read the code. It alloes for 2" up or down from stock. Did you get a ticket?
You might try going to a Honda dealer & get a curtisy inspection. Maybe they could document your ride hight.

Good luck