Luke Cage mentions Zoë Kravitz to Squabbles. Kravitz reacted to the reference on Instagram on October 5, 2016, and while flattered she disputed the claim that she was more attractive than her mother, Lisa Bonet.
Luke Cage was imprisoned at Seagate. This is the same prison that Trevor Slattery was sent to after the events of Iron Man 3 (2013). Slattery and Justin Hammer are both seen there in the Marvel one-shot "All Hail the King," which can be found on the bonus features of the Blu-ray or DVD version of Thor: The Dark World (2013).
In therapy, Reva mentions a "millionaire trapped in a dungeon" while talking about Seagate. Justin Hammer, a millionaire, is an inmate of Seagate after his actions in Iron Man 2 (2010).
While there is no telling how long Squabbles had the issue, the Lisa Bonet issue of Rolling Stone came out in May of 1988.
When used in the wreckage of the restaurant, Cage's phone shows Thursday, November 5, which fell on that day of the week in 2015.