I hate to be the bearer of bad news, but unless it’s a red curb, that kind of stuff is allowed. Based on your description I’m assuming you mean standing and not parking. The former being the driver stays in the car but the vehicle is otherwise stopped/parked in one place. The latter is essentially the same but no one is in the vehicle.

I hate it when people do it mostly because it’s the entitled people who do it, not people that actually need to.