I've never been to McLane stadium but preliminary internet search looks like parking is a typical Baylor clustef*ck. It says the options are
- North of the stadium is neighborhood with paid cash parking but limited
- West of I35 is old downtown Waco with a shuttle "every 5 minutes"
- On campus is free and first come first serve but they close it down 4 hours prior to game time so you have to be there VERY early for a "maybe" spot
- I35 will have multiple exits closed to get off the interstate