I have had road crossings, day and night. The smart Sasquatches are clever with night time crossings. They hang out, hidden by the side of the road and when the vehicle passes, they walk across the road. You can't see them with the fading illumination from your tail lights. The work around is an accessory back up light, switch controlled by the driver so when a 'gut feeling' occurs, light up the road. I had a 'road crossing' area in track less terrain but I found the holding area due to crushed ferns. I put out gifts but I placed a trail cam in the area and that was the end of that site.
Here we go with trail cams again. Plastic smell outgassing that lasts( formic acid ), also enjoyed by bears, physical shape, sonic noise, ultrasonic noise, magnetic fields ( spiders love the magnetic poles of the batteries ), human scent, possibly disturbing the ground balance during camera install and maintenance and they watch us put up trail cams. From one trail cam, I learned that in summer, with dry weather, they could smell me for 3 days. I moved that cam and they watched me put it on a tree. Busted from the first minute.
Taken out of context: "invariably find something which is always inconclusive." That is the way of Adult Snipe Hunting. Where do they buy the giant pillow cases?