There’s nothing more delicious on a rainy day than feasting on soft, warm, mouth-watering cookies.

But if you’re looking to buy from Insomnia Cookies, you’d better call or order online.

Minutes after 4:20 p.m. today, a huge line of students looking to take advantage of Insomnia’s eight cookies for $4.20 at 4:20 p.m. on 4/20 formed outside the truck, despite the rain.

Since then, they have been receiving orders for more than 400 cookies every ten minutes — four times the amount the truck can make at once.

Since phone and online orders come first, the truck’s window is closed until the orders begin to slow down.