I'm sorry to hear about your negative experience. This is nothing "typical" from what I have seen at the park (as my home park, I make frequent visits) and Viper's crew is usually (emphasis on usually because I know things can change from one crew to the next immensely) one of the best, with very efficient dispatches and very engaged ride ops. Sorry to hear you caught it at a bad time.
I've heard nothing about any crew in the park pushing down on someone's head to alter their height before this, usually they slip a straightedge and apply force only towards the measuring rule. Glad to hear it all got resolved but at the same time it's an unfortunate incident that ultimately shouldn't have to happen.