They were watching him closely.
I am sure they were.
He was attending a dinner – a Sabbath dinner, which means there were additional customs in place that everyone is expected to follow. He was a leader, a teacher, a person with a notable reputation. And he was controversial: we’re in chapter fourteen now, in Luke’s Gospel, ten chapters after his own townspeople were so enraged by what he was saying that they tried to throw him over a cliff. By now, Jesus is known up and down the countryside. And he’s making his way to Jerusalem, where he will face his ultimate confrontation, his rejection, and his execution.
So yes, they were watching him closely.