transport: record FasTrak payment confirmation

bookings/transport/car-rental.md

@@ -35,6 +35,8 @@
 
 **Latest status (2026-09-20):** MS collected the Chevrolet Traverse at 13:50 PDT. The updated rental agreement reports parking `SFO-LV2-B-14`, plate `CA-9YIK383`, and fuel 21.2 US gal. A separate SIXT booking-update email displays the pickup as 14:00 PDT; both times are preserved in [the normalized update](../../sources/transport/2026-09-20_SIXT_Rental_Agreement_Update.md). The agreement lists no additional driver. See [the earlier status email](../../sources/transport/2026-09-20_SIXT_Checkin_Status.md).
 
+**FasTrak:** A one-time payment confirmation received 2026-09-22 records confirmation `226155084` for tolls incurred 2026-09-21 18:20–20:20 on plate `9YIK383`. The email gives no amount, currency, or accounting payer, so it is not in [`expenses.md`](../../expenses.md). See the [normalized receipt](../../sources/transport/2026-09-22_FasTrak_One-Time_Payment.md).
+
 **Condition recorded at pickup:** superficial scratch over 10 cm on the front driver-side door; dent up to 1 cm without paint damage on the rear passenger-side door; superficial scratch under 5 cm on the front driver-side aluminium rim.
 
 **Return note:** The booking was kept through 2026-10-05 because the quoted price was the same. SIXT permits early returns and says the rental will be adjusted to the actual duration. Update the return time in the SIXT account before returning the car.