My employer did some free promotional work for a local restaurant, and we received free meals this evening in return. The only stipulation was that we pay for our drinks. My bill arrived, and there was a charge of $12 (plus tax) for the single cocktail I ordered. (No charge for the after-dinner coffee.) Service was very good, so I tipped very well, but I absent-mindedly tipped on just that one cocktail, and not on the $116 five-course fixed-price dinner. When I got home, I thought, "Crap, I blew it." (It wasn't even such a potent cocktail, so I can blame nobody but myself.) Now I'm seriously considering contacting my associate at the restaurant and asking how I can rectify this, since I feel I've insulted my servers.
So... Am I wrong in thinking I've made an error? Am I being ridiculous in thinking I should try to follow up on it? Is there a tactful way to approach this? Has anyone else encountered a similar situation?