Going to first Texans game!!

So I'm going to my first Texans game and it's gonna be the season opener. I'm from Louisiana so I'm getting a hotel close by the stadium. This may be a stupid question but this is my first nfl game period but if I get a hotel close by that's walking distance me and my wife can just walk to the game right? No need to buy parking passes just walk up to the gate and and show our tickets? I know it might sound stupid but we're driving 10 hours round trip and wanna make sure we're ready for game day!