So, let's say it is all about custody. How do we go from A, Heroes, to B, Bayou Sara?
The person first has to know that she's going to Heroes - could have been by word of mouth, a Facebook post, many ways they could have found that out if DNV expressed it. So from Heroes, they... follow her to Dublin's? And they wait outside? They then get lucky because she happens to lose her phone. From there, they follow DNV, who is following DW, to the Shell for who-knows-what reason - and surely they'd have seen she was following someone else, and then they park slightly off in the distance - close enough to swoop in within a minute of DW pulling out. Had to have been following, right? Because how else would they know to go to the Shell? They see an opportunity, and Car 3 with the person inside of it enters the gas station within a small frame of time after DW leaves. A gas station with security cameras, like many gas stations. They then disable the GPS on the car. There's possibly more than one of them because it's doubtful DNV would have gone willingly after being surprised by them at the Shell. They do something to her to subdue her. One of them gets in her car, the other follows in Car 3. One runs it off the boat ramp. They get in the other car and drive away, and she's been disappeared?
If that was the plan, and it was all planned out, wouldn't there be a much easier way to do that? Why do it in such a risky way? Obviously it panned out thus far because nobody's been named a POI or suspect that we know of, but why do it that way? Why not wait for her somewhere else? Intercept her at her apartment? Something like that?