Wendy's is open after 10pm in most places I think. Try out their Apple pecan grilled chicken salad. I don't know about it's colon-clearing properties but it tastes really good.
And if that fails, though not a salad, may I suggest this recourse.
I haven't been to Jack in the Box in ages, but I think I recall they had some good salads.
Schlotzsky's had some good salads. I just can't remember if they're open after 10:00PM and whether they have a Drive-Thru. I think probably some do have a Drive-Thru.
Okay, I've figured out the real story. Dino was driving down the road. Slowing down to ask strangers."Where can I a tossed salad." His license plate gets reported. "Well, you see, your honor..."
I couldn't find that salad last night so I threw a buncha Tabasco Sauce on some Stouffer's Salisbury Steak. It didn't produce the firm, healthy logs I was wanting to extract but it did irritate my system enough that I was peeing gravy outta my butt something awful which was good.
Sucked down some delicious Taco Bell yummies after visiting an account. A mile into my drive home I see a Hardee's under construction. First one to come to NJ. Made me feel moisture down there. The next closest is in Delaware.