Vehicle Shudder problems of the 2019 Toyota Camry

I was in the drive thru queue at burger king and I had the brake hold activated, waiting for my turn. The car just vibrated and shut down. I tried to start it again it never started. On the dash it said coolant temp high, charging system malfunction, drive start control malfunction,brake override malfunction. I thought I needed antifreeze so I walked to sunoko to buy one. Tried to put some in but antifreeze was full so I couldn't top up. The antifreeze is in the trunk. I tried to get a jump thinking it was the battery but it still didn't start. I towed to Toyota and now they're telling me the computers are not communicating right with each other. My gas says 65535mi distance to empty. My car is been sitting at the dealership for a week now and they didn't give me a loaner car even though I have warranty on it.

The car in highway speed when the last speed engage the car starts to shake for few seconds you can feel more on hills and when press the gas to pass a car I feel like something is no right and when you make a stop and press the gas to go forward sometimes the transmission feels like is no pair with the engine I really feel worried for my wife if this car can be in neutral or no power on the highway the car doesn't feels right, this problem starts to happen a week ago the car only have 6000 miles.