Not knowing the area I couldn't respond to that very well myself, but here are a couple of moderately relevant comments:
1. There are a lot of places I have been where rabbits were not too worried about being out in the day. But that could vary from place to place. We used to see them fairly regularly on a hill near where I grew up...they didn't run and hide unless you seemed aggressive or got too close.
So rabbits out in the day might mean something, or it might mean nothing. If you were there, and they were wandering around relaxed, I would think they were used to seeing people!
2. If it's 38 degrees any decision I make about staying or going would relate mainly to water. I don't take chances about running out of water in hot climates having come too close in the past. Without water I walked for a night in the desert and lost consciousness the next day waiting for dusk to try to walk some more. Granted I started a little dehydrated but regardless, no water no walk! I mention this partly because it looks pretty dry there.
If there was water there and not elsewhere I'd be inclined to wait.
On the other hand if I drove there myself and then my car broke down, I'd also know what I had to go through to get out. So without knowing the place, pretty tough to make a call like that IMO.