The Aldis in WA have self checkouts. But they've only been introduced over the past couple of years. Maybe it's the same nationally? Worth another visit to see?
They're pretty good ones, too - the bagging area holds four bags - which is sometimes enough for the whole shop. I don't much love their camera right in your face, though.
Can we have a few more details of what these interactions are, please? Because if Police simply charged in with batons swinging, it's a problem worthy of much wider coverage. The way she's worded this sounds cagey though - like she's painting herself in a positive light and not asking for any sort of investigation into the incident nor calling out for excessive force/assault against the officer(s) involved.