Storing cooked food in ziploc
Considering the time of 10 hours in a food without being in the fridge, that can be in danger zone (of bacteria reproduction), so i would recommend you to prepare your lunch a few hours about 2-4 earlier to avoid bacteria reproduction as posible, if the temperature in where you live its cold rather than warm, that can help to maintain a little bit more. if you cant prepare it less late until time of consumption, then it will get some ugly smell in the sausage rather than the bread (if the bread has moisture on it then it will too) tho you can still eat it, but likely or not it will upset your stomach a little.