There are multiple ways to acquire packets for deep packet inspection.

Are they going to do deep packet inspection to know what I like?

Deep packet inspection is kind of worthless if its opt in after all.

The city state reportedly employs deep packet inspection of internet traffic.

Deep packet inspection just sounds a lot more like their spying on your every move.

So there's a little bit of deep packet inspection going on.

Another possibility is the use of software tools that do high-performance deep packet inspection.

So they're using deep packet inspection to look at the data transactions to their customers.

In this case if the state table is matched, then it doesn't need deep packet inspection.

They can't do that w/o deep packet inspection which isn't very legal.