Below the dam is tidal. If you fish any of the feeder creeks, you'll need a freshwater license. And some, like deer creek, you'll need a trout stamp for. Shad and white perch are all over the river right now.
Plenty of places to fish along the river from the dam right down to havre de grace. When they're running less water, you can wade almost all the way across. Just walk along the bank and talk to guys. The lower Susky is world class fishing! Dam flow hotline is 888-457-4076
I've never been a fan of hers. Although, some viewpoints I may agree on, she's nasty and snarky and honestly doesn't behave much like an adult. I like to have discussions with people, not nasty, in your face, you're so wrong and I'll prove it nonsense. Save that crap for middle school.
The issue is if you are a Maryland registered driver. All of your vehicles (trailers included) need to be registered in MD. This really isn't new news or law, it's just they are stepping up enforcement.
I don't know about commercial regs since they don't affect me. This actually isn't new, it's just that boat ramps are target rich environments for NRP to ticket. Also, MTA police will be on the lookout at bridges and tunnels.