Hello all. I'm a DIYer and relatively new to the hardwood flooring game. I've recently installed a new floor in an upstairs sitting room (about 180sf). The lumber was 7in t&g white oak. It was fairly rough with knots and imperfections and whatnot (I've got a friend that gave it to me from a mill he owns). We wanted the imperfect older "character" look since we have a farm house. Long story short, I sanded (36,60,80,100) and wood filled some of the worse areas, stain (2 coats) and put on 3 coats of Bona Traffic Satin, 1st with a tbar, then when I realized I sucked with a tbar, the last 2 with a roller. I really like the look of it but my only problem is there are a few areas here and there that have little spikey things and parts of the wood that were a little distressed that are really sharp now since the poly has coated them. My question is can I lightly sand the spots with some 200ish grit sandpaper and not mess up the floor? I wanted to sand between coats of poly but my wife wanted me to hurry up so I didn't. I'm pretty sure this is all her fault and to walk across these spikes should be her punishment. It will help develop "character". Thoughts or solutions? Thanks.

It is part of good workmanship to provide a smooth floor. The floor may be wiped with a sponge or napkin and should not have sharp spots that may cause an injury.As the worker you are responsible to take the necessary steps to provide an acceptable product.
You may need to use a new sanding sponge, 150 grit to smooth the bumps. A touch-up using the grain pattern to blend the extra coat will be necessary. If you saved the bottles you may have enough to cover the spots. Once time has passed you will need to use fresh finish. Usually the product is mixed in the container instead of a using a fresh one, like a gallon milk bottle, to mix the product so you may need to buy another gallon of finish.