A possibility, but the CPS is definitely the place to start.
The vehicle speed sensor isn't very exposed to temperature extremes and we've pretty much nailed down that what's failing in your car fails when hot. The main suspects are the CPS and the coil pack. Hope it's the former. Pray it's not the latter.
BTW, if you've located the CPS, a way to verify that it's at fault would be to let the car idle in your driveway until it dies and won't restart, then apply ice to the CPS and see if it starts after a minute.
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