I haven't seen carts do that. But the...I don't know what you call them...the orange platform carts that Home Depot has for lumber and such...THOSE seem to roll with even the slightest pitch. Plus, you can't really prop those up on a curb on the H. Those ALWAYS go back in the corral or at the front of the store. Actually, come to think of it, Home Depot is one of those places where the parking lot is such that there really aren't any good places for the carts other than the corral, so that's one place where I don't think I've left mine anywhere else (and it is a lot more rare to see carts around the lot there as well).
But, again, that kinda goes to my point anyway, that folks here tend to just go with whatever works in a given situation, taking whatever the circumstances are at a given store into account, and nobody seems bothered about it (well, I shouldn't say "nobody"--I actually once saw a lady rip into someone for leaving his cart on the H. But she had out of state plates on her car, so there you go). You can physically see the Costco I mentioned above from the Home Depot parking lot, and if you drive over there, you see carts everywhere. So it just depends.