Hmm, zombie hordes? Haven't seen any yet.
Crowded parking lots - sure. Might be because Trader Joe's are located in smaller locations with 1/10th the parking space of Krogers or 1/20th the space of Walmarts.
Pricing - go to Ralphs pay $6.99 for a dozen eggs, at TJs, $3.99. So, pricing is a thing - they price it well.
Sorry Sean. I've met some cult members at Trader Joe's but I knew them before I started shopping there. No secret handshake. No wink-wink at the checkout stand. Just hello, how's it going, have a nice day. Just like the place - and the name of course.