What do you do about obvious (low stakes) dealer collusion?

So I went to a close by (for the 1st time) poker casino and played some $40 buy-in max 1/2 poker. I'm just wasting blinds for a bit and then I get to hand in which I put $2 in OOP (because I have AK) in aggressive waters and it gets to the SB. She says chop and the BB agrees. Dealer pushes both of their blinds back and then pushes my OOP call back and I say WTF? She says that this is house practice and states that I should have raised if I wanted to play.

I obviously have never played at this casino before, so I let it slide. But other actions later at this table looked like collusion with the dealer. My question is: is this normal practice? I've never seen this practice at ANY casino.