Do they have any ethnic stands or bbq? Beef is huge here but they usually offer some smoked chicken options. Usually there are gyro stands as well that offer chicken options. If you only eat maybe 1/2 of the pita it may not be so bad.
If there's only traditional, greasy, fatty fried food, personally I'd go with a hot dog. It's less greasy and often times they offer somewhat veggie like options, relish, onions, tomatoes, peppers, to top it with. It's easier to guess the calories as well.
235: Pre-Pregnancy Weight
227: 10% Lost
214: 15% Lost
191: No longer "Obese"