Our ABS (and all vehicles) has a fail-safe to allow normal braking if the ABS unit fails. The last thing we want is for the ABS to prevent braking entirely. But anything is possible. If there's an electronic problem, removing the ABS fuse should cut power and restore normal braking.
Who knows though? Weird stuff happens. Many members here have had ABS trouble, but we've never heard of this problem with the ABS.
Mark