Back in the early 80s I had a fairly old car of a fairly cheap model/make. One day in the snow, leaving the large car park at work, I started the car and got out to scrape ice & snow off the windscreen (windshield). A sudden gust of wind slammed the car door closed and I discovered it was completely stuck, either frozen, jammed or both. I was at my wits end as the car was revving away with keys in ignition and choke out. Fortunately, not long after, a colleague, who had the same car model and make although a different year, emerged from the factory, saw my perplexity and we hit on the idea of trying his car key to open mine. It worked easily! Key & lock technology will surely have advanced a lot since then..... hopefully!
John