Not wanting to be a killjoy but you do realise your supposed to put the spacesaver on the rear and not the front?
Can’t it be repaired? The screw is well within the area of the tread where repairs are permitted. Some years ago, I picked up a screw in a similar part of the tread and the tyre place I took it to was able to to plug it from the inside.
a spacesaver goes on the rear )