Playlist:
The Apples in Stereo / She's Telling Lies (Bryce's Mix) (2002) / Bandcamp
Since this takes place in 2005, it's not completely bizarre that someone's asking "if" Sara has a cell phone, but by that point most people would have had one. There would have been plenty of pay phones still around (maybe not in this particular neighborhood). It's hard to think of any time when asking a stranger to use a personal phone wouldn't have been a bit odd, and this is indeed supposed to feel off. Calling a car service would have been the only way to get a ride in an outer borough.