Hopefully you've never gotten a speeding ticket, parking or similar. Because most of those are classified at the same misdemeanor level as "entering illegally", which would make you a criminal, too.
Illegally entering is a criminal misdemanor, so they aren't the same thing.
Unless there's some international border in Sunnyvale I missed, I don't think the ALPRs will catch any illegal entry.
There is a big difference between overstaying a visa for a few weeks and illegal migration.