I've been in your place before. I feared getting it from sick family members through the mail and on Christmas presents. Logically, I don't think it's possible, but that's the problem with this phobia, it's not logical. If you washed your hands after you got your check, you'll be fine.
About going out to dinner, there are so many times my husband has wanted to go out, but I was just not strong enough to go out. I wouldn't have eaten anything and would have been a basketcase afterwards worrying about the same thing as you. Did the person preparing it wash their hands, were they sick (after hearing about all these places that make sick employees come to work anyways), was the server sick, etc. etc. etc. I can go on and on, and I guess just go with your feelings tonight. If you feel up to it, go. If you don't, take a raincheck. I'm afraid that I won't feel up to it for Valentines Day, and it's coming up soon. I would much rather make my hubby a dinner at home. I don't like going out to eat, and hopefully your hubby (and mine) will understand.
In memory of the sweetest german shepherd I ever had the pleasure of knowing. I love you, Duncan. 3/12/02 - 12/19/11