My guess is that there WAS someone with him. I'm betting that's the hush, hush, not his willingness to say..."I'm going to therapy".
Would just love it if his car had a GPS system in it that tracked his movements....although by now, I'd guess it's in the Potomac.
At least it's not in Poucha Pond.
Do you think it a possibility that his dad, "Splash" might have been in the car with Patches that night. You know "Splash" lots of experience in covering things like this up.