Place the cilantro, garlic, jalapeƱo, mayonnaise, sour cream, vegetable oil, lime juice, rice vinegar, salt, and pepper in the bowl of a food processor; pulse until combined and smooth.
Make the tortillas from scratch or use store-bought. Warm them over a low flame on stovetop burners until just slightly charred around the edges.
Top tortillas with a little coleslaw and 5 or so shrimp. Drizzle with the cilantro-lime sauce.