Continuity mistake: When Monk is trying to get out of the Captain's car, Randy is trying to get his wheelchair out of the trunk. In the shots from the rear of the car, Randy is directly behind the vehicle. In the shots from the front, Randy is a few feet away. (00:18:00 - 00:19:00)
Continuity mistake: In "Mr. Monk On Wheels," after Monk gets out of the car, when he closes the door while standing on his unshot leg, he's facing the front of the vehicle. In the next shot, from behind the car, he's facing the rear of the vehicle without having turned around. (00:18:55)
Continuity mistake: In the lab scene near the end, when Monk has the electric wheel chair, Natalie is holding the bottle of pills in her right hand and the drink in her left hand when she gets up from the seat. In the next shot she is holding the drink in her right hand and the pills in her left.
Continuity mistake: Monk eats a sandwich with a slice of one of the square tomatoes on it, however, in "Mr. Monk Goes to the Asylum," tomatoes are one of his allergies.
Answer: Stottlemeyer was already upset after the phone call. He was trying to get "Kevin" (who would have to be a judge, but no further character information is given) to issue a restraining order with no evidence of needing one, except that Adrian Monk said she needs one. Kevin said he would need to "sleep on it." So it's clear they've been trying to provide protection and unable to get the results they need, which seems to be based on no one trusting Monk the way Stottlemeyer does. He's just angry that they failed to protect Linda despite all their work. Although it does feel like a scene was cut, or altered, from the show that shows the futile attempts to protect Linda which built up to his outrage.
Bishop73