I'd hazard that you won't suffer any ill effects with a temp spike that late in the fermentation -fermentation should be completed before that -take a reading and if so, rack it to a secondary (if it were a darker ale, I generally don't bother with secondaries) and get ready to bottle or keg or however you intend to carbonate and consume.
You really should be fine.
But fermentation should have been completed by now. Don't sweat what you can't change, take a hydrometer reading and if the FG is there or close to there, rack that stuff into a secondary, or into the bottling bucket!