Should I Rent a Car or Use Uber?

I'm visiting Houston next month. I'm flying into Hobby, staying in Midtown and will be going to baseball games at Minute Maid Park and at Rice and University of Houston. Renting a car is going to cost $175, plus gas,plus parking costs. Should I just Uber around? When I did the fair estimate it would be about $100, but I know surge prices can jump things up. What's the surge situation? Is this $100 estimate going to turn into $300? Thanks for the help.