Wombats are bloody dangerous, some people assume roos a the worst to hit but a wombat can hide in the shadows of the road and remain unseen till too late and if you hit one at a decent speed you can launch yourself airborne. I know drivers of 12 tonne trucks who've either flipped or come close to flipping their trucks because of wombats, I've been lucky mine have either been slow speed hits or just the right spot to not flip me.
Tool kits in trucks often depend on driver or owner driver situations. My boss when I was working the Island brought a tool kit for the truck but some mongrel stole it, we don't know if it was the casual who did my one day off or the linehaul blokes that delivered to us, we suspected the casual but had no proof. But the boss refused to buy a new one when stuff was going missing so I was doing 400+ks a night without any tools and our mechanic was anything up to 3 hours away in the wee hours of the morning.
Not that a tool kit would have fixed it but I've driven home 150ks with no clutch (3 times in a week), a flat rear tyre, no wipers or indicators, no radio (always a killer) and even a rear barn door hanging open. I wasn't impressed with the situation and some of it may have been luck but health and safety rules stated we weren't allowed to repair the trucks ourselves during deliveries and in most cases engine or gearbox problems weren't fixable on the side of the road with your average tool kit anyway, half the time the trucks had to get towed. So I can understand some truckies not having toolkits, most food delivery drivers by law aren't allowed to refuel during deliveries let alone change a tyre.