Any persons on the side of the road are considered disabled and you must stay with your vehicle if that is the case. I don't think could convince a trooper your broke down when you walk back up with a shotgun
My mom worked with a guy who put a rag in his window and would go fish the ditches for stripers. That didn't last long.
I probably hunted some of those spots you eyed up. To do it right it's a long boat ride, and usually muddy. Honestly I don't think it is very worth it unless you know you have a good chance at something othe than a black duck and two hoodies. I could hunt way easier spots for that. I know about some people who don't do it right but I won't revealthose secrets so others don't get any good 'bad' ideas