Buried in the TOS: free Starbucks refills

Considering how the dc ones would shoo out homeless I wonder how this works legally. Can you offer free refills then set a cap on how long one can be in the store?

(Similarly McDonald’s, which had a video go viral of a homeless man who someone bought a meal being asked to leave - van it be argued he was falsely advertised free refills?)

My uni had a lunch only meal plan + booths with power and WiFi and some days I’d eat lunch, study then eat dinner later.