Here's a suggestion...consider that the Lexus Dealership is across the street from Full Sail. Most dealerships now have nice waiting rooms for their customers while their cars are serviced....big screen tv's, internet access

nline:, etc.
Perhaps Tony used the Lexus waiting room as a place to hang out :chillpill: between classes/labs.
Here's how that thought ties to the events of 6/24AM... :idea:
Speculation - Casey's cell battery died during her call w/ Tony and he called her back...except...Tony called G&C's house.
At 9:56AM we know Casey (at Tony's apt) took an incoming call from Tony for an 11min convo. The convo ended @ 10:07AM
Then, we have the 10:03AM call from Lexus to G&C's home phone for 7 seconds. (Check my time please as I'm referring to above post for this timestamp...I don't have the source doc).
Also note that one may allow a shift in the timestamps when comparing since the landline provider's clock and the cell provider's clock are independent.
Perhaps outta habit, if Casey's cell battery went down @ 10:07AM :talker: mid-conversation :curses:, Tony dialed Casey's home phone :doh:. Or, Casey may have even told Tony she was going to G&C's when he left for class that morning

. George answered the call at home, "
Hello. Hello? ... [click]" (speculation) ...that'd take 'bout 7 seconds.
At 11:20AM Casey called Lexus for a 6min convo.
...then...
64mins later,
completely unprovoked, (e.g. no sign of a messages waiting system notification) Casey called her vmail.
One might do this if one is expecting a call and one's battery was dead or phone was off...eh?
Consider that Lexus of Orlando is directly across the street (University Blvd) from Full Sail University and closer than walking/driving all the way back to Sutton Place Apts. One can get a real sense for the proximity by viewing this in the street-level view of Google Maps. In Tony's statements to LE early in the case he mentioned that he might hang w/ friends after class/labs before meeting up w/ Casey. Methinks Lexus may have been one the places Tony hung out.
Perhaps, as a means to preserve Tony's cell phone minutes, or poor cell connection on campus...or...whatever, Casey may have been calling the Lexus switchboard to be routed to the service waiting room to talk to Tony.
ETA: So...why did Lexus "appear" 6/16 and stop 7/2?

One reason they may have started 6/16 was owing to Casey's freedom to talk during this period vs. pre-6/16. Perhaps Tony's class/lab schedule changed (IIRC, there was some mention of this happening @ one point in his statements).