There do seem to be inconsistencies with the information we have about DW, but I'm open minded to the possibility that he chose to withhold some information about where he and Danniella were going for personal reasons. The fact that he retrieved her phone, waited for her at The Dublin, went to Ollies to see if she showed up there, contacted Danniella's family the following day about the phone, and then followed up regarding filing a police report makes me think that he tried to do everything that he thought would help. A few inconsistencies don't seem that important in my opinion given the efforts he made to motivate people to look for her.
I'm more curious about Car 3. Car 1 and Car 2 drove together and stopped at the Shell station together. Just as Car 1 left the Shell station to return to the Dublin, Car 3 arrived at the Shell station. Car 1 believes that Car 2 is following, but perhaps that was a misunderstanding.
Danniella and Car 3 were [probably] at the Shell station from 11:08 - 11:24. Did Car 3 also follow from the Dublin to the Shell station? Was that one of the party train, or was that someone who was not part of the party train, but someone who was keeping tabs on Danniella?
Have we heard anything about CCTV from the Dublin parking lot?