You're going to get lots of replies, "I've driven XXXX miles over limit and never been stopped." Those comments are true, UNTIL you do something that draws attention to your condition and might even be a factor in that attention getting incident.
If you sideswipe another vehicle or obstacle making a turn that requires law enforcement attention, you may have a citation added to your damages, or perhaps be required to drop the extra length and return for it with a vehicle within state limits. The other driver or property owner could make it an issue in a lawsuit. You are increasing your liability in driving in that condition, be sure to have insurance that covers the extra risk.
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI