How to freeze temporarely the player's movement?

It may seem like a silly question but I can't seem to figure an easy way for it.

When it's an autorun event it's not a problem as the player movements are freezed but recently I had to use parallel events as autorun was not okay in those cases and as I press the key arrows (needed during the Parallel process to do other things) the player beneath moves together with it.

I tried various options in move route (all of them, from direction fix, to stopping the animation), I even tried to use the move route in script form as I thought it was weird the player could move with direction fix ON (but I suppose it only locks the direction but can still move).

Is there a workaround I didn't think or anything I missed to easily accomplish the temporary player's movement freeze?

There could be a better way of doing this depending on the exact context, but here's how you could do it.

Search for "def update" in script Walk_Run and add a new line after "def update",

return if $game_switches[69]

Now when switch 69 is ON, the player will not move. You can change the number of the switch if you like.
Hope this helps!

It worked perfectly :D Thanks a lot!