Is there evidence of her in the SUV?
I a mentally trying to time the distance btw Poway and Dehesa. Is he speeding? A speeding RV would be a magnet for the CHP, even at that hour. 10-15 minutes to the I-15/I-8 intersection, about 20-25 minutes to El Cajon, then maybe another 15 minutes to Dehsa Road. So that could be within the timeline. But I am only guessing here.
I was wondering about how fast he'd have to be going in the RV to make it from Skyridge to the Dehesa site, too. Someone on another board drove Skryridge Road and had this to say: "The road is very twisty and narrow in many spots (lots of 15mph turns). Navigating a large RV must be a little tricky up there."
I just did a Yahoo map search for the address on Skyridge and the Dehesa site and used the drive time Yahoo gave. I thought the drive time might be longer in an RV, but wanted to give Valpall's theory the benefit of the doubt.
You sound more familiar with the area. What do you think?