On the trail: There may have been at some point, but I assumed you didn't pull off just to the side of a trail, so not anywhere really close. You did specify out of the way.
On looking at AR/Scanning/Hacking. You can if you want to, or not. If you are going to do something you have to define what you have turned on, as without some connection to the matrix you won't be able to even attempt matrix perception rolls. (If i recall, I think Mlinzi was the only one with something left on, though I may be mistaken)
Of course I am not saying that you have to look for anything, just if thats the direction you choose to go.
They are between 300 and 400 meters from your position atm, which is still a fair distance, especially in the dark, and not headed right at you. If you want to know more, it's going to take active observation of some kind, like an observe in detail or something else. Of course, that's not a guarantee you will learn anything more or even if there is anything more to learn.