I don't see how that pertains to biology, but there is something similar that you could test and maybe create a product which could be very useful.
Colorado is a really dry climate so I don't know if this happens everywhere, but usually in the early spring when there was no precip the night before, some HPDE boxes are sticky as hell. You hit them with speed and it just about rips your skis off and you get pummeled. This happens first thing in the morning. You can literally walk up a down box. Once it warms up a little and the surface of the box gets wet they start sliding normal. If you take your glove off and rub your hands on the box when it is like this, it feels like a cutting board that has had a lot of use.
Let the hate parade start, but getting body slammed first thing in the morning is not the best way to start your day. I prefer coffee. Some will say don't worry about, don't go out so early, wait for the n00bs to hit them first and then they will be fine. I coach and we go out early. It would be great if park crews could spray something on them on those types of mornings. One guy blowing threw the park could do it in minutes. Maybe it would be as simple as misting them with warm water. That's for OP to figure out.
Also with everything being so lawsuit happy these days, I am sure that a lawyer could convince a jury that a skier jumping onto an HDPE box has an expectation that his/her skis are going to slide and not stop dead.