Will it get sucked up into the pickup screen ? Probably not. Will it cause a major restriction? I don't think so. Knock it through with a pin punch or a push rod like cab said and install a new one. I have found worse stuff in oil pans from perfectly good running engines
Gus
Your suggestion made me think that doing so, one may be able to fish the piece with a small flexible Magnet, or a larger more powerful magnet on the bottom of the pan should grab the piece and allow one to pull it over to the DP opening
Myself, I'd either try the tap first or collapsing the side as previously suggested. Both have worked well for me over the years
