Upvote:2
Definitely go to the airport and pass immigration before your visa runs out, 1 hour or 1 year makes no difference and it is your problem to have a flight that leaves on time, the exact issues you might have are not public but for sure overstaying won't look good the next time you apply for a visa, you can also go to the airport and try get an extension for 24 hours, this worked for me twice before albeit not in schengen but it's always better to be there before your visa runs out than after