2016 Camry Smart Entry system

[amjewel]

Hello everyone, 

I am driving my Toyota Camry Hybrid 2016 Model over 1 year now. It has done only 86k now, but already having so many issues going on. Last Sunday night it was heavy raining in Sydney. I just parked my car and way to my house. After 100m away from the car, I hear some noise that similar noise when the car is running. Car headlight was turn on automatically and stared making noise. I tried to open the doors but no luck, seams like it's locked from inside. I had my key with me, but unable to open the door with the key. The noise was pretty loud at 2am as my neighbor could not sleep. Tried all the possible option but no luck, left is like that for the rest of the night. After 30 min beeping has stopped but the head light was on for whole night.  The next morning car was running as normal, I took it to the mechanic as he found no issue at all. Any idea what can be done ?