If we suppose its true that Steven's trip(s) to Ruby Valley/northern Utah extended over the 8th and 9th its entirely possible to assume that he was out of cell range (especially with At&T) and didn't get the message until later, if at all. I *think* his cell record will show when he received the text. But it might show when AT&T received it and not when it was delivered to his phone.
A bit of clarification: "Northern Utah" isn't Salt Lake City. It's the the northern half of Davis County, and up from there (ie, the "panhandle" part).
Being a Utahn, I get a bit excited that there's maybe new news regarding that area.
We know he was using his phone on the 13th, and that messages were checked on the 14th.
Do we know if Steven was a texter?
I ask that, because I know lots of people detest texting OR it's not included in their plan, so they avoid it. I don't like it one bit