Correct.
Hoarding supplies and equipment is a great idea if you're serious about being prepared but at the end of the day, it's power in numbers. Once it becomes clear that some sort of collapse is imminent, I would immediately form a group that included family, friends, colegues and others who might have something in common with you. Grouping with random people is not a good idea, you must have something in common to build on.
It is also important to make sure you will be among the elite/leading party of your group. With the legal system down, this is the only way to protect yourself from abuse. A good way to make sure that happens is to form the elite group first. That includes friends and family, people who are already close to you. Then, I would get others who have nothing in common with each other so that they would be unable to form an opposition against the elite.
You must then get your group to live together and make plans to get supplies, find a sanctuary and take long-term measures for sustenance.