Will be in SA in late March for 5 days, staying at Homewood Suites on Riverwalk without a car. We would like to eat at some great Tex Mex restaurants. If we can take the trolley to Southtown or Pearl, what are the best choices there? Also, would appreciate recommendations for many days of lunch. And lastly, some suggestions of things to do in SA that only locals might know. Thanks for your help.