Personally, I don't think your tomatoes will remain watered for two weeks, so here are three methods you can try. First, all of my plants have been specially setup to have drippers which run on a sprinkler timer. It's very easy to do, especially if you already have sprinkler valves in your yard. For my peppers, etc., I took one of the unused valves, and bought another sprinkler timer box, and connected that one valve to it's own timer box. A second method is to hook up the drippers to your hose bib, but use one of those special hose timers instead of a sprinkler timer. The third idea you can try if you have any 2-liter soda bottles around. If you can manage to put a small pin-hole in the neck of the bottle, fill it with water and screw on the cap (if you have a Harbor Freights store around, they sell special cones with holes in the side that screw onto the top of the bottle). Then bury the bottle upside-down a few inches into the soil so it stands upright with the neck into the soil (or stick the cone into the soil, if you got one of them). The water should seep slowly out of the pin hole as the plants need it so they never go dry....whichever method you use, test it before you go out of town...