Yeah, forgetting to put your drivers license back into your wallet after a ride is a problem, and if I wasn’t worried about police harrassment, I’d just write my contact info inside the bike pouch I keep in my jersey pocket and be done with it, however, I do have pre- and pos-ride habits to help me remember to do the swap.

Actually, it may be that I’m inclined to stop for a glass of wine on the way home, not police misconduct, which compels me to carry my DL, but the point remains the same.

I suppose you could request a replacement license from the issuing authority and keep the old one in your bike kit, but don’t mix ‘em up, because in most states— I think— you can only have one valid DL card, so the replacement license supercedes the older one, which is then invalid, and you wouldn’t want to give a cop an invalid license…unless you think your story about how you can’t remember to carry your license because you’re a cyclist would be really entertaining for the police.