Dashcam recording even in park mode

[Macneil]

Mrs M kindly bought me a dashcam for Christmas, and I had it fitted at Halfords Tuesday last. I didn't use my car all weekend and on Monday it wouldn't start - flat battery.

Leaving aside the less than helpful attitude from the fitting store, the sd card shows that the camera had been recording constantly before failing on Sunday afternoon obviously draining the battery. I phoned Nextbase who were very helpful, I formatted the card and reset the camera to default and engaged parking mode.

But at work today the camera recorded four hours of the car opposite mine in the car park. The cam is supposed to shut down when ignition is switched off and activate only if the car is disturbed.
Is it just faulty? Or is there a setting I'm missing? GPS function is working ok looking at the screen.

[Macneil]

The nextbase support guy said it should be connected to a permanent live feed. I think he said that the gps would sense that the cr was immobile, we discussed heated windscreen elements etc but the gps appears to function ok.

[Macneil]

It's a Focus and it was fitted by Halfords...the nextbase guy was quite happy it was permanent live, hence my wondering if the cam itself is just faulty.