ATIA for hating on a "wholesome" family

Im a waitress at a family owned cafe, I have been waiting there for two years. The family that runs the cafe are kind of ... the worst. ( have friendships with alot of the waitresses which is what has kept me there for so long) but basically there's the daughter of the owner of the cafe who is my ex manager, and her husband.

Every SINGLE day (unless they are out of town) the husband calls in around 7 AM to order food before he goes into work, he has never tipped, and never has to pay for the food. (even waitstaff have to pay 50% of their own food) sometimes, he'll even come in the afternoon to get lunch. This one time when he came in, he got a large order that was complicated to prepare and took a lot of extra work that to go orders usually don't need. He laughed and said he didn't have any cash to tip, after finding a grand total of 3$, he joked " Hey, a 300% tip on a O$ meal isn't too shabby!" Him, his aunt and his sister (who also works there) laughed.

Him and his wife are both very religious (which inherently isn't bad) but it's just gross to me the way they preach Christian values while treating waitstaff like this.

One time, the wife (ex manager) even took a fucking picture of me while I was working at my other job through the window of her car. She sent it into a group chat with her cousin and the sister in law (both of them work at the cafe) she captioned it "new tattoo?" For context, I have a few tattoos and I'm currently working with a tattoo shop on the side. The whole situatior v was super weird cause i literally hardly know her, also what normal person gives a fuck what there ex employees are doing like super weird.

It felt like she was making fun of my tattoos and I felt super judged. For the last two weeks, every shift I've worked they've been coming in to eat as a family for lunch, and take up a table (are cafe has like 6 tables) tip $5 (regardless of meal total or service) get free food and then leave dirty dishes. It sucks when they take a long time because we have other well- paying customers who could be taking that table instead. They have never been outwardly mean or said anything rude but I don't know how they don't see how their actions affect us waitresses. (Especially because my ex manager knows what it's like to waitress there) they just act nice and joke with us like it's no big deal.

I was watching them today with their baby and kind of felt guilty? Like they seem like a nice family. Am I just being an asshole when I don't really want to acknowledge them like everyone else does? (If they talk to me l'm cordial but I don't go out of my way to flatter them like the other waitresses.)

Am I justified in this or am I just being over dramatic? I feel like they think I'm the rude one for not really talking to them but in my opinion everything they have done is way more rude.

They just seem fake to me. Always saying the nice things but their actions speak way louder. Is there anything I can say to them to help them understand? Please let me know what you guys think!