TBH i have experienced sort of the same with my SG9663DC, if i turn it off on the power button, and then a little later want to turn it on using the same button ( car engine running all the time )
Well than i cant, so i have to turn off the power on the Rhundo devise i use and then turn it on again ( similar to pulling the 12 V plug if not hardwired and then inserting it again )
but pulling the power like that are not a option if you are hard wired.
I would assume that if you turn off on the button ( which i think would be normal if you park at home in your garage and so don't really need parking guard, then the camera should come on as normal the next day when you drive off.
I am not familiar with the viofo cameras but don't they have a shut off timer in the camera ? cuz if they don't then the camera just change to parking mode and record until low cut off are reached.
When i get to try parking mode i will be using a 1 hour cut off timer as i don't really need parking guard other than when i am shopping and it don't take long, so no need to have low battery cut off as anything but a safety guard in day 2 day use, and THE safety in case i need longer time parking guard.
If you are using hard wire, and have set a low battery cut off, it should be safe just letting the camera go into parking mode, and then see what happen then the next day when you want to drive off.
I would assume that no matter how you stop a camera recording ( button or key off ) the camera should come back to life as normal when you start the car again.
But lets see what users of this cameras can contribute with.