What a shame, but understandable.
However, there is an ever increasing thread on this forum listing where members can get their vehicles serviced.
As Larry points out, locating servicing may not be straightforward, but members should ask their local Toyota Official dealer.
Most will not, as Larry highlights, work on your vehicle, but some will, so it's worth a phone call.
Accordingly, it is advisable, before purchase, to ensure you have a source for servicing.
Buyers should also establish whether the selling dealer has on site servicing facilities. Many do not.
That may be an important point to consider before the purchase decision is made.