As others have pointed out toe strike is a non-issue with freewheel bikes. At the kind of speed where it's possible to turn the wheel that far, you probably won't be turning full pedal revolutions anyway. Or you can simply do have revolutions.
However if you're riding fixed, the coast past the problem option is off the table, and I've seen lots of folks go down (at 1mph or less) when their toe jams the wheel while fooling around or trying super narrow U-turns.
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