I definitely see your logic, but I have to say that it's vague enough that it isn't exactly crazy to think she could have been talking about getting pulled over a second time in less than 20 minutes.
Which is why the dashcam footage is so important to clarify exactly what happened. I do find it unlikely that police would lie, however it might be true that she got pulled over at 4:25 and 4:40.
At this point, if they told us she indeed got pulled over twice, I'd not be surprised.
I truly hate the idea that a police officer might be involved, and I still doubt it, however given the resistance to simply release the footage and make it clear... suspicion is just a reality that comes with that choice.
I'm going to make a guess that this new man call/text is either a boyfriend on the side, or drug/escort related. Sorry to be so blunt, but **cooperating** gives me the sense that there's been some illegal activity and a reason why this person wouldn't have come forward much earlier. I'd find it odd if they said the parents were **cooperating**.