Transformation efficiency
This is hard to answer since we don't know the exact conditions you chose, as these are rotation speed (or better g), how long you spun them down and also if you used a cooled centrifuge or not. It's also important how gentle you resuspended the pellet.

However, I would plate these cells, no matter what happened since you are at the last step of the procedure and have nothing to loose. Do the usual dilutions you use for plating your cells and then add another plate with undiluted transformation mix. If you have only very few surviving cells after your mistake you might get your clones on this plate. If it doesn't work, you will have to repeat the transformation.