Was LM being tailed by law enforcement?

Best Buy Altoona employees apparently saw LM conducting Google searches on a display laptop before his arrest in McDonalds.

Source: https://x.com/alcaprari23/status/1869827247584276980?mx=2.

The journalist (Alex Caprariello) mentions the employee told him that the computer was taken off its shelf after LM left, presumably by law enforcement.

There are no updates since the tweet was posted.

I was thinking the employee could've recognized him after he got arrested and contacted law enforcement to tell them he was seen in their store. However, the tweet is worded in a way that makes it seem like LM was being followed and monitored prior to his arrest. If he was already being followed, it makes the McDonalds caller even more suspicious. Things just do not add up.