Need solution for setting an order minimum by geographic location

Site URL: https://www.kovikai.com/

So the challenge we face is that our product is frozen and needs to be shipped express and with dry ice, which makes shipping out of state expensive (we're based in California).

We would like to set an order minimum of 6 packs for all out-of-state orders, but still offer 3 packs to California residents. I confirmed with Squarespace support that setting an order minimum based on geographic location isn't currently an option. As it stands now, we only offer 6 packs on our website.

Can anyone suggest a work around for this dilemma? I feel like we're missing out on a local audience that would gladly buy 3 packs (especially new customers) but might think 6 packs is too much.

Thank you!!!

@bangank36 I'm not quite sure I get what you mean. How do we make it so that someone out of state can't choose the Cali option? Do we require them to enter a zip code or something?