No, Lamborghini does not offer free services. You can negotiate this with the dealer and I knw some how did not get a further lower price but one or two free services.

Check the cars service manual. The oil change and inspection should be noted with the miles. Check the outside for chips and scratches.

I see no reason that car should be clocked back. The Huracan are just too new. One usually does this on older cars like the Gallardo. There was a Performante in Germany that had close to 100k and was found with 50k later. But it had an accident earlier at around 70k what was reported (although we do not have something like Carfax here) so they found out that it was clocked.

Honestly I really see no cause why not buying the car. Try to get a lower price (5-10k) and tell the salesman you are a little concerend why one sells the car with less than 1k mls Car looks great !