Answered this in another comment here, but can repeat. Phone location is not a valid alibi in court. As you pointed out with your example here, it only proves

Answered this in another comment here, but can repeat. Phone location is not a valid alibi in court. As you pointed out with your example here, it only proves your phone was at a location not that you were so it isn't accepted as an alibi. Police use phone location to generate leads not as evidence in court to prove someone they charged was at a location. They need better evidence than that in court to prove someone committed a crime.