From the very start, I've always believed whatever occurred happened around that 8 PM timeframe. Dylan's texting his friend and his friend sensed something wasn't right, and Dylan agrees, And Dylan makes plans for the 6:30 am next day with his friend, from the Texting it appeared Dylan wanted to get away from there as early as Possibile, and texted he wanted to be there at 6:30, which meant the Dad would have had to wake up around 5:30 to get ready and drive Dylan, the dad is not like a 13 y/o just jumping out of bed and driving Dylan.
I believe Dylan wanted to get away quickly, and they were arguing while Dylan was texting, and after Dylan told the dad he made plans for arriving at 6:30 am at his friends, the dad was very upset, maybe because Dylan wanted to leave very early instead of spending time with the father, and this caused the dad to destroy Dylan's cell phone, that would explain the loss of communications with the cell and Tower, and also Dylan's texting did not seem to end correctly with his friend, seems like Dylan would have texted more concerning the arrival the next morning, and also he never said goodnight or any follow up text.
I believe the father destroyed the cell in a fit of Rage, and Dyan was striking back, and the father caused the Dissapeareance of Dylan, There's a large time frame from that Evening until the time Law Enforcement was notified, and the father had plenty of time to dispose of evidence before notifying them.
Dylan just arriving hours earlier and telling his dad he made plans to be at his friends house the following morning at 6:30 makes me think he wanted to get away from there as quickly as Possibile. I believe Dylan was not at the house the morning the father claims he awoke to run those four hour errands, and Dylan did not want to awake, like I stated they would have needed to awaken around 5:30am to arrive at his friends at 6:30 am, and I believe the father sticking with the 6:30 am time should have alerted law enforcement suspicions also. Law Enforcement knows whatever happend, was around the 8 PM time frame, and the cell phone losing communications with the tower, helps to show the father is lying. He has the answers to solving this Disappearance, and bringing closure.