Roll it in reverse all night if you can

.carpet{ border-radius:20% 20% 0 0; }

Shock treatment. Barely heat it, not so it’s hot to the touch, but warm and pliable. Then flatten the fuck out of it with something cold. I have aluminum plates for this but you could use some steel that fits in the freezer, or steel with a bag of ice on it. The idea is that we get it pliable, put it how we want it, and then cool it off rapidly to make it stay like that.

Alternate: tell the boss to get a decent walk off mat

Reverse bending has worked for me.

Or find some reason to put an indoor plant, large ornament or small bookcase on it.

Maybe try a heat gun before applying the weight?

These things usually are stored rolled up, and they curl when new because of that.

Usually they’ll lay flat in their own inside of a week. I have seen people hasten that with a heatgun or small portable room heater- just enough to warm it a bit.

I’ve also seen people melt them trying that.

Had the same issue at my gas station, pick up a cheap clothes iron, it will heat the area enough to relax it. You can also use a heat gun if you’re careful. Once it lays down right, weigh it down again and let it sit until fully cooled. You may need to do it in stages if the curl is bad.

I’ve seen people use low profile corner weights on those before. They’re little triangular weights that slip over the corners. May not be legal in some areas due to being a tripping hazard.

Use carpet tape (double-sided tape that’s meant for sticking rugs to the floor) to fasten stiff squares of material to the undersides of the corners. The stiff material will keep it from curling, but it won’t be stuck down to the floor so you can still move it.

You can’t attach it to the floor, but can you use some good double-sided tape or super glue to attach some steel weights to the underside of the corners?

Any home improvement store should have some flat bar. 1/8" or about 3mm should be flat enough to avoid a tripping hazard, but check local regs for commercial properties.

Pin the ends down with something and put ice along where it wants to curl. Let the ice melt over night. When it dries the problem will be solved.

I haven’t actually tried this, I saw it in a video but apparently it works

really just guessing but heating it with a hair dryer or smth, and curling it back a bit while letting it cool down might help, i’d imagine.

Tape

I’ve heard some people doing the water + cup method where you damp the corner with water and then leave a cup on it and it will reposition the corner to stay down. But that is only when the corner has actually come up and you want to fix it and it sounds like you want to be proactive and prevent it from coming up in the first place?

Perhaps there is some other type of adhesive you can use to keep it down but bring up when needed? My mom used to use this blue gum like substance that would hold things to the walls in her classroom. It didn’t leave residue and would come off with little ease on your part but keep things held onto the wall. That may work here? She used to get it from office supplies stores and it legit looks like gum. Can’t remember the exact name of it.

Maybe bend it in half length wise and see if that fixes it