If I had to guess now it works it would be:

1. Take pictures

2. Send to a big server that all cops nationwide can log into whenever they want to stalk their exes

Did I miss something

The system they log into is called DAVID(Driver and Automobile Information Database) which logs activity. If an officer access that information for unlawful purposes, they can be prosecuted. You probably wont believe it, but the reason you hear about cops stalking their ex's is because they got caught doing so.

	▲	AngryData 29 minutes ago \| parent \| next [-]
		I don't care if a small amount of cops get in trouble if the other 99% of the time they get away with it.
	▲	SoftTalker 3 hours ago \| parent \| prev \| next [-]
		How many didn't get caught? Or did but the issue was quietly "handled" within the department.
	▲	zzzeek 2 hours ago \| parent \| prev [-]
		emphasis on "can"