Not to worry - just crawl under the car, punch a hole in the tank with a sharpened screwdriver and drain the gas into a container. That was the standard bypass of the locked gas cap in the '70s. It will no doubt show up again, if it hasn't already.
To bad 80 percent of the vehicles nowadays are not even high enough to crawl under, let alone put a 5 gallon gas can under it.
Again, if prices continue to rise, syphoning fuel crimes will be the least of our worries.